
Knix
Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6"
The Knix Leakproof Contour Thigh Saver Control Short is a high-rise, light-absorption (equivalent to 1 regular tampon) undergarment designed to manage light periods, urine leakage, and sweat while providing tummy control. Made from silky stretch nylon-blend microfibre with a control panel and Fresh Fix Technology gusset, it offers a seamless, discreet look under clothing. Its 6-inch inseam reduces thigh friction, and the high-compression fabric may slacken after several wears for greater freedom of movement.
- Material
- Silky, stretch nylon-blend microfibre
- Gender
- female
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Shapewear
Specifications
Leakproof control short with light absorption, high-rise waist, and tummy control panel for discreet protection during periods or light bladder leakage.
Leakproof, Fresh Fix Technology, seamless construction, high compression, tummy control panel, 6-inch inseam.
- Material
- Silky, stretch nylon-blend microfibre
- Gender
- female
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Shapewear
Additional Attributes
- Leakproof construction
- Contour design
- Thigh Saver® technology
- Control short for tummy firming
- Light absorption level (equivalent to 1 regular tampon)
- Fresh Fix Technology® in gusset
- Strategic seamless construction
- 6-inch inseam to reduce thigh friction
- Silky, stretch nylon-blend microfibre
- High rise waist
- Control panel to firm and flatten tummy
- Perfect for periods, urine leakage, sweat
- High compression level (slackens after a few wears)
Product Insights
Knix's Leakproof Contour Thigh Saver combines anti-chafe coverage with a light-absorbency gusset for blood, sweat, and urine, while its 6-inch length stays in place under dresses to prevent ride-up. The nylon fabric stays cool and dry on 95°F days, reducing friction and generated heat. A key tradeoff: the high compression slackens after a few wears for a customized fit, so buyers should start with their regular size and not size down. Available in beige and black for discreetness, it offers a risk-free trial—wash and wear within 30 days for a full refund. Care instructions: machine wash cold, no softener, lay flat to dry.
Verified claims
- Ride-up
- The 6-inch inseam helps the short stay in place and is less likely to ride up than the 4-inch under dresses.
- Leakproof capability
- Handles light menstrual flow, urine leakage, and sweat in one absorbent gusset.
- Heat comfort
- Fabric stays cool on 95°F days
- Sizing
- Start with your regular size; the high compression slackens after a few wears for improved fit.
- Length
- Buyers report the 6-inch stays put while the 4-inch rides up.
- Stay-put
- Fabric stays put, reducing friction and generated heat.
- Care
- Machine wash cold in a laundry bag on a gentle cycle, no softener, then tumble dry low or air dry to protect the leakproof layer and Fresh Fix Technology.
- Return policy
- Buyers can wash, wear, and return the shorts if needed.
- Compression break-in
- Compression loosens with wear; do not size down.
- Dual function
- Combines anti-chafe coverage with a light-absorbency gusset for blood, sweat, and urine.
- Comfort and fit
- Nylon fabric stays thin and cool; 6-inch inseam prevents riding up; compression break-in customizes fit.
- Discreetness
- Available in beige and black; nude options help stay invisible under light clothes.
- Light absorbency capacity
- The light absorbency is equivalent to about one regular tampon and is designed to handle light flow days and backup for a menstrual cup under normal activity.
- Leakproof technology track record
- Knix introduced leakproof underwear in 2013 and has refined its absorbent technology for over a decade, so this short uses a mature leakproof liner rather than a first-generation design.
Product record
- Title
- Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6"
- Brand
- Knix
- Price
- 49 CAD
- Availability
- In stock
Buying Guide
1 comparison · 14 sourcesUses
Backup for light period, urine, and sweat leaks
Knix's Leakproof Contour Thigh Saver Control Short is designed for absorbing light leaks from periods, urine, or sweat, with a light absorption level the merchant compares to one regular tampon. The brand says it can serve as backup or full protection depending on your flow, and that combining its absorbent liner with the Thigh Saver design also helps prevent thigh chafing and period leaks.[3,5]
Staying chafe-free on warm or active days
Knix's Thigh Saver short is designed to help prevent thigh chafing, with a 6-inch inseam that helps reduce friction between the thighs. One reviewer describes the shorts as lightweight and notes they come in a variety of nude colors, and recommends the 6-inch regular length over the 4-inch version, which they found tended to ride up.[1,3,5]
Smooth, discreet shaping under dresses
Wear this short under dresses or fitted outfits when you want light tummy smoothing—the control panel is designed to firm and flatten, while seamless construction aims for a discreet look under clothes. Bonded leg hems create a smooth finish against skin, and one reviewer reported feeling secure and confident wearing them under a short dress.[2,5,6]
Staying cool and comfortable while moving
One reviewer found these shorts' thin, soft nylon fabric didn't heat up as she moved and stayed put, so walking around didn't create extra heat from friction. The short starts with high compression, and the microfibre is said to slacken after a few wears for greater freedom of movement.[2,5]
Product comparison
Compared within this brand.
| Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6": Choose this if you want a high-rise, mid-thigh short that combines light leak absorption with firm shaping: the gusset holds about as much as one regular tampon for periods, urine leakage, or sweat, while the control panel is intended to firm and flatten the tummy and the 6 inch inseam helps reduce thigh friction. It offers a high level of compression, though the nylon-Lycra microfibre slackens after a few wears for greater freedom of movement. Knix also permits washing and wearing the short to confirm your fit before removing tags.[3,4,5] | High-Waist Body-Shaping Leakproof Control Panty Absorption: Light: Choose this if you want leakproof underwear that also smooths your middle: it has a high waist with a control panel to firm and flatten the tummy, seamless construction for a discreet look under clothes, and light absorption stated as equivalent to 2.5 regular tampons for periods, urine leakage, or sweat. The gusset uses Fresh Fix Technology® and a cotton-blend layer, and one long-term user reports finding it more comfortable than other brands and easier on her sensitive skin than disposable products. Note that this light-absorption style is not the brand's heaviest option, and the same user reports the fabric loosens with age, which can cause leaks on the days she trusts it most.[7,8,9] | Super Leakproof® Dream Short Period Panty Absorption: High: Choose this if you want high-absorption period underwear designed with heavier flow days in mind: it is rated for about 5.5 super tampons' worth of menstrual fluid, sweat, and urine, and is presented as suitable for periods and urine leakage. The boxer-brief short has a wide stretch waistband, seamless construction for a discreet look under clothes, an ultra-long gusset with Fresh Fix Technology, and a patented 360 LeakSeal trim that helps lock in leaks even if you toss and turn; one reviewer found it did not pinch or roll up, though it has a bulkier feel. Note that care requires avoiding fabric softener and the dryer, which can compromise the fabric and reduce absorbency, and one customer reported bleeding through the seams within four hours of wear.[10,11,12,13,14] |
Image Analysis
3 images- 01

Product
Front-facing model wearing a high-waist, mid-thigh black control short with a smooth matte finish; visible contoured crotch pad area. Also visible is a matching black molded bra (upper garment) but observations focus on the short as pictured.
- Overall silhouetteHigh-rise short with a smooth uninterrupted front panel rising to the natural waist and thighs covered to mid-thigh length on the visible side.
1 region
x 0.18 · y 0.46 · w 0.64 · h 0.42 (high) - Waistband constructionWide seamless-looking waistband that tapers slightly into the torso without visible elastic band or topstitching.
1 region
x 0.28 · y 0.46 · w 0.44 · h 0.12 (high) - Leg openingsStraight-cut leg openings with a smooth hem finishing at mid-thigh on both legs; left leg slightly more visible than right due to pose.
2 regions
x 0.18 · y 0.78 · w 0.28 · h 0.16 (high); x 0.54 · y 0.78 · w 0.28 · h 0.16 (high) - Crotch pad / absorption areaVisibly darker, contoured oval-shaped panel at the crotch area suggesting a reinforced or absorbent zone centered in the short.
1 region
x 0.40 · y 0.74 · w 0.20 · h 0.14 (high) - Fabric finishSmooth, matte stretch knit fabric with minimal surface texture and no visible pattern.
- Side seam and shapingSubtle lateral shaping with nearly invisible side seams; right side seam follows the contour of the hip smoothly.
1 region
x 0.66 · y 0.54 · w 0.18 · h 0.36 (medium) - Visible upper garmentMolded black bra with smooth cups and narrow straps; included here only as visible context above the short.
1 region
x 0.26 · y 0.10 · w 0.48 · h 0.30 (high)
Other
Studio lifestyle shot showing a model standing against a neutral pale wall with soft even lighting and minimal shadows; image cropped to show torso and upper thighs.
- Shot compositionFrontal lifestyle studio shot of a standing model cropped at upper thighs and above the head with the model slightly leaning against the wall.
- BackgroundPlain light beige or off-white wall background with no props or visible branding.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (low) - Lighting and shadowsSoft, diffused lighting from the front-left creating gentle shadowing on the right side of the model and minimal specular highlights on the fabric.
- Model poseModel has hands positioned behind her back, weight shifted slightly to one side producing asymmetric hip placement.
- Image qualityHigh-resolution, well-focused image with natural color rendering and no visible compression artifacts.
Colors
matte black· shorts main body#140B0Ematte black· bra cups and straps#240A04deep black· crotch pad panel#120C0E- Overall silhouetteHigh-rise short with a smooth uninterrupted front panel rising to the natural waist and thighs covered to mid-thigh length on the visible side.
- 02

Product
Rear view of a high-waist, thigh-length black control short on a model. Visible center back seam, bonded leg hems, textured upper waistband, and a small reflective 'X' logo at the upper center back.
- SilhouetteHigh-rise, form-fitting short that extends to mid-thigh with a smooth continuous surface over hips and rear.
1 region
x 0.10 · y 0.18 · w 0.80 · h 0.72 (high) - Center back seamVisible vertical seam running from the waistband down through the center of the rear to the crotch area.
1 region
x 0.46 · y 0.18 · w 0.08 · h 0.58 (high) - Upper waistband textureUpper back waistband shows a fine microdot or honeycomb knit texture distinct from the smoother lower panels.
1 region
x 0.28 · y 0.12 · w 0.44 · h 0.14 (high) - Bonded leg hemsLeg openings have clean, narrow bonded edges with no visible folded hem, creating a smooth finish against skin.
2 regions
x 0.12 · y 0.78 · w 0.35 · h 0.18 (high); x 0.53 · y 0.78 · w 0.35 · h 0.18 (high) - Fabric finishMatte, smooth stretch fabric on the main lower panels with slight sheen differences between textured waistband and smooth body.
1 region
x 0.20 · y 0.22 · w 0.60 · h 0.60 (high) - Gusset seamCurved seam at the crotch/gusset area visible where rear panels meet the center seam.
1 region
x 0.44 · y 0.64 · w 0.12 · h 0.14 (high) - Logo“Small stylized 'X' logo positioned on the upper center back of the waistband.”
1 region
x 0.52 · y 0.20 · w 0.06 · h 0.06 (high) - Side seam invisibilityNo visible vertical side seams on the outer hip area; panels appear smoothly joined.
1 region
x 0.10 · y 0.20 · w 0.80 · h 0.60 (medium)
Other
Studio shot of a model wearing the product from the rear against a neutral light background. Soft, even lighting with subtle shadowing; crop shows torso from lower back to mid-thigh. Model's hands rest at sides and are partially visible.
- Shot compositionRear-facing studio photograph cropped from lower back to mid-thigh, product centered in frame.
- BackgroundUniform pale neutral background with no packaging or props.
- Model handsModel's left and right hands are visible at the outer edges of the frame resting beside the hips.
2 regions
x 0.02 · y 0.42 · w 0.16 · h 0.42 (high); x 0.82 · y 0.42 · w 0.16 · h 0.42 (high) - LightingSoft, diffuse studio lighting producing even illumination and gentle shadows under the hem and along the center seam.
Colors
deep black· main body fabric#160B0Dvery dark charcoal· upper waistband texture#21161Blight gray· logo- SilhouetteHigh-rise, form-fitting short that extends to mid-thigh with a smooth continuous surface over hips and rear.
- 03

Product
A folded black garment is visible through a vertical clear plastic window on the right side of a black retail box; the visible fabric is glossy and shows curved contours of the folded item.
- Visible garment through windowFolded black fabric visible through a tall, narrow clear plastic window; fabric appears smooth and slightly glossy with curved folds and a seam or contour line visible near the center of the window.
1 region
x 0.72 · y 0.18 · w 0.18 · h 0.64 (high) - Garment finishBlack fabric surface shows specular highlights and reflected shapes, indicating a satin or smooth synthetic finish.
1 region
x 0.74 · y 0.22 · w 0.14 · h 0.56 (medium)
Packaging
Matte black rectangular retail box with a left-side pale pink rectangular label bearing the brand name and product text, and a pale pink circular size sticker at top right; a vertical clear plastic window at right shows the product inside.
- Box color and shapeRectangular matte black box filling the frame with slight edge bevels visible at corners.
1 region
x 0.55 · y 0.02 · w 0.43 · h 0.96 (high) - Clear plastic windowTall narrow vertical clear plastic window inset into the right side of the box, glossy and showing reflections and the folded garment beneath.
1 region
x 0.72 · y 0.18 · w 0.18 · h 0.64 (high) - Brand logo“Large lowercase 'knix' wordmark printed in bold serif type on a pale pink rectangular label at left.”
1 region
x 0.06 · y 0.26 · w 0.36 · h 0.26 (high) - Product name line“Leakproof Contour Thigh Saver®”
1 region
x 0.08 · y 0.44 · w 0.30 · h 0.06 (high) - Bilingual descriptive lines“Short sculptant gainant étanche Thigh SaverMD”
1 region
x 0.08 · y 0.50 · w 0.30 · h 0.10 (high) - Length label“6" (15 cm) 6 po (15 cm)”
1 region
x 0.06 · y 0.74 · w 0.14 · h 0.10 (high) - Size and quantity sticker“M QTY | QTE : 1”
1 region
x 0.72 · y 0.04 · w 0.20 · h 0.18 (high) - Illustration iconSmall simple line drawing of shorts printed on the lower right of the pale pink label.
1 region
x 0.28 · y 0.72 · w 0.08 · h 0.10 (medium)
Other
Studio product shot centered on the box with neutral light gray background and even soft lighting; slight shadowing and reflections appear on the clear plastic window.
- Shot compositionBox is photographed front-facing and centered in the frame with minimal perspective distortion.
- BackgroundUniform light gray backdrop that surrounds the box on all sides.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (low) - Lighting and reflectionsSoft even lighting with visible specular reflections on the clear plastic window and on the folded black fabric inside.
1 region
x 0.70 · y 0.18 · w 0.22 · h 0.66 (high)
Colors
gloss black· visible garment#0E0E0Ematte black· box backgroundPackaging#1C1C1Cpale blush pink· label and size stickerPackaging- Visible garment through windowFolded black fabric visible through a tall, narrow clear plastic window; fabric appears smooth and slightly glossy with curved folds and a seam or contour line visible near the center of the window.
Brand PDP Lookup
- Brand
- Knix
Leakproof Contour Thigh Saver® 6” | Slimming Anti-Chafing Shorts – Knix
Variants
9 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4574766 | Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6" - Black - X-Small | CA$29.95CA$49.00 | Yes |
| 4574767 | Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6" - Black - Small | CA$29.95CA$49.00 | Yes |
| 4574768 | Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6" - Black - Medium | CA$29.95CA$49.00 | Yes |
| 4574769 | Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6" - Black - Large | CA$29.95CA$49.00 | Yes |
| 4574770 | Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6" - Black - X-Large | CA$29.95CA$49.00 | Yes |
| 4574772 | Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6" - Beige - Small | CA$29.95CA$49.00 | Yes |
| 4574773 | Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6" - Beige - Medium | CA$29.95CA$49.00 | Yes |
| 4574774 | Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6" - Beige - Large | CA$29.95CA$49.00 | Yes |
| 4574775 | Leakproof Contour Thigh Saver® Control Short Absorption: Light Length: 6" - Beige - X-Large | CA$29.95CA$49.00 | Yes |
Documents & Data
Customer Reviews
1 total1 reviews · out of 5
Biker
Confortable
Reddit Insights
1 threads · r/weddingplanningA user recommends Knix Thigh Saver 6-inch shorts as a lightweight, nude-colored anti-chafing solution for under dresses, preferring them over the 4-inch version which rides up.
Only one user discussed the product, expressing clear preference for the 6-inch version for comfort and fit, with a minor caveat about the shorter length riding up.
Themes
Use Cases
- Wearing under dresses to prevent thigh chafing during events like weddings
Watch Out For
Compared To
vs Knix Thigh Saver 4-inch
The 4-inch version tends to ride up, making the 6-inch version the preferred choice for anti-chafing.
Source Threads
Recommendation for Knix Thigh Saver 6-inch shorts as anti-chafing solution
I like Knix’s “Thigh saver” shorts - they come in a variety of nude colors and are very lightweight. Definitely get the 6” regular ones - I have the 4” too but they tend to ride up a bit.
u/falcon_knight246r/weddingplanningView thread →