Salomon
Grvl Skin 4 Hydration Vest
The Salomon Grvl Skin 4 is a lightweight hydration vest for trail running and ultrarunning, designed for minimalist carry on any terrain. It includes two 500 ml Hydrapak flasks, weighs 195 g (6.9 oz), and features stretch micro mesh, adjustable chest toggle system, zippered front/back pockets, and reflective details. Reddit discussions note it may be cooler for hot-weather running but lacks the pass-through pouch found on the Adv Skin 5 and has limited user feedback due to its recent release.
- Gender
- unisex
- Category
- Sporting Goods > Athletics > General Purpose Athletic Equipment
Size
Specifications
A lightweight, stable hydration vest with two flasks, adjustable fit, and reflective details for running.
Maximum stability, guaranteed comfort, easy-access pockets, toggle fit-adjustment system, zippered pockets front and back, reflective details, includes two Hydrapak flasks (500ml each), stretch micro mesh with padded areas.
- Material
- Back: 100% polyester; Yoke: 87% polyamide, 13% spandex; Body: 76% polyamide, 24% spandex; Lining: 100% polyester; Pockets: 88% polyamide, 12% spandex; Coating: Latex
- Occasion
- workout
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Category
- Sporting Goods > Athletics > General Purpose Athletic Equipment
Additional Attributes
- maximum stability
- guaranteed comfort
- easy-access pockets
- includes two Hydrapak flasks 500ml each
- weight 6.9 oz (195 g)
- stretch micro mesh
- ultra-comfortable mesh
- padded in strategic areas
- toggle fit-adjustment system on chest
- zippered pockets front and back
- reflective details
Product Insights
Salomon's Grvl Skin 4 Hydration Vest is a lightweight 195g gravel-running vest that prioritizes low heat buildup and front-access storage: an open 3D mesh back and minimal 4L capacity reduce thermal load, but the vest is limited to two included front flasks with no bladder support, and its toggle-loop flask retention may lose elasticity over time. The Quick Link adjustment and X SHAPE harness provide a customizable, second-skin fit for hybrid-surface runners, while the understated Iron/Silver Cloud colorway reflects its design with the Girona Overland Running community. As the first vest purpose-built for gravel, it offers accessible phone, nutrition, and flask pockets forward, with a rear zip pocket for a jacket, but cannot accommodate a back bladder or pass-through.
Verified claims
- Storage
- 4L front-loaded, no rear pass-through or bladder sleeve, for short runs.
- Heat management
- Open 3D mesh back panel reduces heat buildup compared to Adv Skin 5.
- Breathability
- Open mesh back and 195 g weight significantly reduce heat buildup in humid conditions, but the vest absorbs sweat.
- Flask retention
- Toggle loops secure the soft flasks, though the elastic may lose tension with frequent use.
- Care
- Hand wash at 30°C and air dry to prevent the latex coating and elastic loops from degrading due to sweat, UV, and salt buildup.
- Design
- Developed with Girona's Overland Running community for hybrid-surface runners.
- Fit
- On-the-go Quick Link adjustment and X SHAPE harness tailor fit for gravel stability.
- Weight and heat
- At 195g with an open mesh back, the vest reduces load and heat buildup.
- Pocket system
- Front loads keep phone, nutrition, flasks accessible; rear zip pocket fits a jacket.
- Flask compatibility
- Included Hydrapak flasks use a standard screw-top nozzle, interchangeable with most soft flasks.
- Hydration system
- Vest is designed exclusively for the two included front flasks; no hydration bladder sleeve.
- Adjustment
- Quick Link allows on-the-fly chest adjustment without stopping.
- Colorway
- Iron/Silver Cloud colorway is understated, avoiding sporty trail styling.
- Silhouette
- 195 g weight and 4 L capacity keep the vest's profile low and close to the body.
- Thermal load
- At 195g and 4L capacity, this vest adds minimal thermal load in heat.
- Sizing
- Toggle adjustment system adapts to different torso lengths and body shapes.
- Comfort
- Vest provides a second-skin feel with a secure, non-chafing fit even in heat.
- Capacity and pockets
- 4L capacity, front-loaded quick access; no pass-through or bladder support; flask loops can loosen.
- Positioning and reception
- First gravel running vest; early adoption shows interest but cautious due to limited reviews.
Product record
- Title
- Grvl Skin 4 Hydration Vest
- Brand
- Salomon
- Price
- 140 CAD
- Availability
- In stock
Image Analysis
3 images- 01
Product
Front-facing lightweight running hydration vest laid flat showing dual front soft-flask pockets, central adjustable elastic cord system with cord locks, a right-side zip pocket, and textured diamond-pattern mesh back panel.
- Overall shapeFlat-laid sleeveless vest with a wide scooped neckline, shoulder straps that extend into a broad back panel, and two front panels forming open storage pockets.
1 region
x 0.08 · y 0.12 · w 0.84 · h 0.76 (high) - Back panel textureCentral back panel made from a diamond-patterned mesh fabric with visible raised texture across the whole center area.
1 region
x 0.32 · y 0.12 · w 0.36 · h 0.38 (high) - Front pockets and constructionTwo large stretch fabric front pockets on left and right made from smooth knit fabric; left pocket has an additional outer flap pocket, right pocket incorporates a vertical zippered pocket.
2 regions
x 0.12 · y 0.44 · w 0.28 · h 0.40 (high); x 0.60 · y 0.44 · w 0.28 · h 0.40 (high) - Soft-flask bottlesTwo soft-flask style bottles inserted in the upper section of the front pockets; each shows a light-gray valve cap protruding above the pocket edge.
2 regions
x 0.18 · y 0.34 · w 0.12 · h 0.18 (high); x 0.70 · y 0.34 · w 0.12 · h 0.18 (high) - Adjustable front cord systemThin elastic cord lacing runs horizontally and diagonally across the front between sewn anchor points, with multiple small black cord locks and toggles for adjustment.
1 region
x 0.28 · y 0.44 · w 0.44 · h 0.44 (high) - Zipper detailVertical zipper with narrow placket located on the right front pocket, zipper pull visible and matching the vest color.
1 region
x 0.62 · y 0.52 · w 0.18 · h 0.28 (high) - Top hanging loopSmall fabric hanging loop centered at the top back neckline.
1 region
x 0.47 · y 0.06 · w 0.06 · h 0.05 (high) - Brand text on pocket“SALOMON”
1 region
x 0.20 · y 0.46 · w 0.12 · h 0.10 (high) - Lower open stash pocketsOpen stretch fabric pockets at the lower portion of each front panel suitable for storing small items; left lower pocket shows an extra flap layer.
2 regions
x 0.12 · y 0.70 · w 0.28 · h 0.20 (high); x 0.60 · y 0.70 · w 0.28 · h 0.20 (high) - Stitching and trimVisible reinforced stitch lines and narrow binding trim around the neckline, armholes, and hem in the same color as the main fabric.
1 region
x 0.10 · y 0.10 · w 0.80 · h 0.80 (high)
Other
Studio-style flat-lay photograph on a light neutral background with even lighting and soft shadowing; image shows the full front face of the vest centered in frame.
- Shot compositionVest laid flat, centered on a plain light-gray background, photographed from above showing the front-facing side.
- Lighting and shadowsEven diffuse lighting with minimal soft shadows around the vest edges and under the pockets and bottles.
Colors
mauve brown· main body and pockets#846E69textured mauve brown· back panel mesh#7B6661light gray· soft-flask caps#C2C5C4off-white· elastic cords- Overall shapeFlat-laid sleeveless vest with a wide scooped neckline, shoulder straps that extend into a broad back panel, and two front panels forming open storage pockets.
- 02
Product
Close-up of the left front panel of a hydration vest showing textured mesh fabric, a stretch front pocket holding a soft flask with visible bite valve, printed 'SALOMON' logo on the pocket, and an internal size label near the top neckline.
- Front mesh panelLarge textured knit/mesh fabric panel visible across the image with a repeating small diamond or waffle pattern and matte finish.
1 region
x 0.42 · y 0.02 · w 0.56 · h 0.96 (high) - Edge binding and seamsNarrow fabric binding with visible zigzag topstitching runs along the outer edge and neckline, matching the vest color.
1 region
x 0.00 · y 0.00 · w 0.52 · h 0.22 (high) - Front stretch pocketStretch fabric pocket on the left front with an open top and slightly puckered face; upper pocket lip has printed branding.
1 region
x 0.14 · y 0.46 · w 0.36 · h 0.31 (high) - Soft flask and bite valvePartial soft water flask inserted into the front pocket; translucent silicone bite valve and cap protrude above the pocket opening.
1 region
x 0.28 · y 0.28 · w 0.14 · h 0.22 (high) - Adjustable cord and toggleThin cord routed along the pocket edge with a small black plastic cord lock/adjuster visible near the lower right of the pocket.
1 region
x 0.56 · y 0.66 · w 0.24 · h 0.20 (high) - Internal size label“Small rectangular size label printed near the neckline with characters including 'M' and numeric ranges.”Partial
1 region
x 0.62 · y 0.04 · w 0.22 · h 0.07 (medium) - Branding on pocket“SALOMON”
1 region
x 0.22 · y 0.42 · w 0.21 · h 0.08 (high)
Other
Studio shot of a cropped left-front detail of the vest on a plain light gray background with even soft lighting and minimal shadows.
- Shot compositionCropped close-up framing the left front portion of the vest from the neckline to the lower pocket area, product fills most of the frame and left edge is near the image border.
- BackgroundUniform light gray neutral background with no visible props.
- Lighting and shadowsSoft, even lighting with very mild shadowing under the pocket and flask indicating diffuse studio illumination.
Colors
taupe brown· main mesh panel#85726Blight taupe· front stretch pocket#84736Cfrosted light gray· flask cap and bite valve#C4C4C3white· printed logo text#C5C5C4- Front mesh panelLarge textured knit/mesh fabric panel visible across the image with a repeating small diamond or waffle pattern and matte finish.
- 03
Product
Rear view of a sleeveless hydration vest showing a central back panel with a vertical zipper, two diagonal reflective strips forming a V, side mesh panels, and printed text logos.
- Overall shapeSleeveless vest laid flat showing the rear side with a wide lower band, armhole openings, and a tapered central back panel extending downward to a pointed lower tab.
1 region
x 0.08 · y 0.06 · w 0.84 · h 0.86 (high) - Central back panelSmooth single-piece central panel in a solid muted brown-mauve fabric with a vertical center zipper running from near the neckline to the lower pointed tab.
1 region
x 0.28 · y 0.08 · w 0.43 · h 0.66 (high) - ZipperNarrow centered zipper with a small fabric pull tab visible at the top and the zipper track running down the center of the back panel.
1 region
x 0.48 · y 0.07 · w 0.03 · h 0.50 (high) - Diagonal reflective stripsTwo muted light-gray diagonal strips printed on the central panel forming a V that meets near the lower center point of the panel.
1 region
x 0.34 · y 0.20 · w 0.33 · h 0.42 (high) - Side mesh panelsMesh fabric panels on both left and right sides with a diamond-like knit pattern visible, extending from the armholes down to the lower band.
2 regions
x 0.08 · y 0.12 · w 0.22 · h 0.64 (high); x 0.70 · y 0.12 · w 0.22 · h 0.64 (high) - Lower elasticated bandWide lower band in a textured knit that wraps around the base of the vest, matched in color to the rest of the garment but with a tighter knit pattern.
1 region
x 0.08 · y 0.70 · w 0.84 · h 0.22 (high) - Top carry loopSmall fabric loop at the top center of the neckline for hanging or carrying, made from the same fabric as the panel.
1 region
x 0.48 · y 0.06 · w 0.05 · h 0.04 (medium) - Rear printed logo“Vertical text printed along the central zipper that reads SALOMON in uppercase letters.”
1 region
x 0.51 · y 0.20 · w 0.10 · h 0.32 (high) - Model text near bottom“Small printed text near the pointed lower tab that reads GRVL SKIN 4 with each token on its own line.”
1 region
x 0.46 · y 0.63 · w 0.09 · h 0.07 (high)
Other
Studio flat-lay product shot centered on a plain light gray background with soft shadowing and even lighting.
- Background and compositionVest is centered and photographed flat against a uniform light gray background with a subtle shadow below the lower band.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - LightingEven diffuse lighting with soft shadows indicating studio illumination and minimal specular highlights on the fabric.
Colors
muted brown-mauve· central back panel and lower band#867169dark brown-gray· side mesh panels#6B5D5Alight gray· diagonal reflective strips and zipper trim#AA9B95white· printed text- Overall shapeSleeveless vest laid flat showing the rear side with a wide lower band, armhole openings, and a tapered central back panel extending downward to a pointed lower tab.
Documents & Data
Reddit Insights
1 threads · r/trailrunningCurious about the Salomon Grvl Skin 4 for hot weather, but most users still prefer the tried-and-true Adv Skin 5 due to missing features and a lack of reviews.
Interest exists for its potential cooling in heat, but hesitation persists due to absent pass-through pouch and very limited user feedback.
Themes
Use Cases
- Minimalist running in hot/humid climates (e.g., Florida)
Watch Out For
Compared To
vs Salomon Adv Skin 5
The Adv Skin 5 is seen as the proven, feature-rich option with a pass-through pouch and more storage, while the Grvl Skin 4 may be cooler but lacks that pouch and remains untested.
Source Threads
User considers Gravel Skin 4 for hot weather, notes it's new and untested
Just got a Gravel Skin 2 and 4. Havent worn either yet. I’ll keep whichever I like better after trying on. Wanted it thinking it may be cooler for Florida heat we’re starting to experience. I’m with you- I don’t need to carry a lot. Anyone actually used one yet? They’re pretty new
u/mrmilsinskasr/trailrunningView thread →