Salomon
Active Skin 4 Hydration Jacket
The Salomon Active Skin 4 is a lightweight hydration vest designed for trail running, featuring two integrated 500 ml Hydrapak soft flasks and compatibility with an additional 1.5 L reservoir in the rear. It weighs 257 g and uses stretch micro mesh with strategically padded fabrics for a secure fit, plus a toggle chest adjustment, small zippered pocket, and reflective details for low-light visibility. Compared to the Salomon ADV Skin, this model lacks side pockets and offers less rear storage capacity.
- Material
- stretch micro mesh and ultra-comfortable mesh, padded in strategic areas
- Gender
- unisex
- Style
- sporty
- Category
- Sporting Goods > Outdoor Recreation > Hydration Systems
Color
Specifications
A tech accessory for trail running with two Hydrapak flasks and reflective details.
Includes two 500ml Hydrapak flasks, compatible with additional 1.5L reservoir, stretch micro mesh, padded strategic areas, toggle fit adjustment, small zipped pocket, reflective details.
- Material
- stretch micro mesh and ultra-comfortable mesh, padded in strategic areas
- Style
- sporty
- Occasion
- workout, sports-event
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Category
- Sporting Goods > Outdoor Recreation > Hydration Systems
Additional Attributes
- includes two Hydrapak flasks, 500 ml (17 oz.) each
- compatible with an additional 1.5 L reservoir
- weight: 9 oz (257 g)
- stretch micro mesh and ultra-comfortable mesh
- padded in strategic areas
- toggle fit-adjustment system on the chest
- small zipped pocket
- reflective details
Product Insights
The Salomon Active Skin 4 Hydration Jacket is a lightweight, affordable vest designed for runs up to 50k, offering a snug fit with SensiFit and dual sternum straps to eliminate bounce without lung constriction. It includes two Hydrapak flasks with 42mm openings for easy ice and powder addition, collapsible bodies that reduce slosh, and high-flow self-sealing bite valves that stay leak-free. The vest provides front pockets for phone, nutrition, and an integrated whistle, plus rear cargo with a bladder sleeve, shock cord, and pole loops, though the rear compartment is hard to access while running. It has a breathable mesh back and minimal padding, but lacks side pockets and has less back storage than the ADV Skin, making it a streamlined choice for beginners to 50k ultras at half the price of the ADV Skin 5.
Verified claims
- Storage
- 4L capacity, no side pockets, and less back space than ADV; suitable for runs up to 50K.
- Weight
- 9 oz, 2.3 oz lighter than the ADV Skin 12's 11.3 oz.
- Cost
- Costs $100, less than half the $145 ADV Skin 5.
- Value
- Lowest-priced vest with two Hydrapak flasks; lighter than the ADV Skin 12 but slightly heavier than the Patagonia Slope Runner.
- Included features
- Includes pole carry, whistle, phone pocket, stash pockets, and bladder sleeve.
- Trail performance
- For beginners to 50k ultras; breathable mesh back, minimal padding.
- Fit
- SensiFit and dual sternum straps eliminate bounce without lung constriction, per testers.
- Front pockets
- Front pockets organize a phone, nutrition, and an integrated whistle, with flasks that shrink as you drink.
- Rear cargo
- The rear zippered compartment is hard to access while running, but includes a bladder sleeve and a shock cord; trekking pole carry loops are also included.
- Comparison to ADV Skin
- Compared to the ADV Skin, the Active Skin 4 lacks side pockets and has less back storage.
- Flask opening
- 42mm opening accepts ice cubes and powders without mess.
- Slosh control
- Collapsible body eliminates slosh and bounce.
- Bite valve
- High-flow self-sealing valve delivers strong stream and stays leak-free when compressed.
- Flask material
- BPA-free TPU bottles are durable, dishwasher safe, and have no plastic taste after initial cleaning.
- Breathability
- Mesh back, SensiFit shell, and polyamide body provide high airflow and moisture wicking.
- Vest care
- Hand wash or gentle cycle and air dry to preserve stretch mesh elasticity.
- Flask durability
- Flasks withstand standing on without bursting; bite valves are leak-free under compression.
- Flask care
- Dishwasher-safe flasks with 42mm wide mouth; any initial plastic taste fades after first washing.
- Distance ceiling
- Handles up to 50k ultras with a streamlined pack, per tester feedback.
- Long-run comfort
- SensiFit and dual sternum straps keep the vest stable and bounce-free over ultra distances.
- Capacity
- Two included flasks plus a sold-separately 1.5L rear bladder deliver 2.5L water; stash pockets cover race essentials.
- Trail features
- Trekking pole loops, emergency whistle, and rear shock cord are standard features for technical trails.
- Total gear capacity
- The 4L volume and front-and-back pocket array can carry the mandatory kit for a mountain ultra without needing a larger vest.
- Chafing prevention
- The 100% polyamide body and lining wick moisture and dry quickly, reducing clammy buildup that can lead to chafing on hot, high-mileage runs.
- Third-party flask compatibility
- The soft flask pockets are standard size for 500ml bottles and should fit most third-party soft flasks of similar dimensions, though compatibility varies by flask shape.
Product record
- Title
- Active Skin 4 Hydration Jacket
- Brand
- Salomon
- Price
- 125 CAD
- Availability
- In stock
- Rating
- 3 stars, 1 reviews, scale 5
Buying Guide
1 comparison · 20 sourcesUses
Hands-free hydration for trail runs
A Salomon hydration vest made for trail running, designed to be easy to wear with stretch, breathable and strategically padded fabrics. It comes with two 500 ml (17 oz.) Hydrapak soft flasks that sit in front chest pockets with bite valves within reach, and it can carry an additional 1.5 L reservoir in the back when you want more water for longer outings.[6,7]
Carrying essentials on trail runs and ultras
A lightweight 4 L hydration vest for trail runs up to a 50k, reviewed as roomy enough for the essentials without weighing you down. It includes a trekking pole holder, two stash pockets sized for gels, nutrition and a headlamp, a strap pocket for keys, and a zippered pocket a reviewer used for a phone. One reviewer found a compartment tricky to reach mid-run, so it may work best for items you rarely need to grab, and the rear compartment has minimal padding, so it ventilates best when not overpacked.[1,2,3]
A close-fitting vest for bounce-free trail running
This hydration vest is made for running, including trail runs, with stretchy SensiFit fabrics and dual Quick-Link sternum straps that let you dial in a secure, bounce-free fit. Reviewers report it feels snug and secure in motion, with breathable mesh panels, and one found it hardly noticeable once adjusted correctly. One reviewer notes the back padding is minimal and that it ventilates best when not overpacked, so avoid stuffing the rear compartment with hard, bulky gear.[1,3,5,6]
Running in low light with added visibility
For runs in the dark or early morning, this Salomon hydration vest has reflective details intended to help keep you visible. It also includes a small emergency whistle in the flask pocket. The lightweight design with a chest fit-adjustment toggle is made to be worn while running.[3,6,7]
Product comparison
Compared within this brand.
| Active Skin 4 Hydration Jacket: Choose this if you want a lightweight trail-running hydration vest: it comes with two 500 ml Hydrapak flasks, accepts an optional 1.5 L reservoir in the back, and offers 4 L of total capacity with a zippered pocket for essentials like a phone or keys. Reviewers report a secure, bounce-free fit from the dual sternum straps and elastic tensioning, in stretchy, breathable SensiFit mesh that a customer describes as true to size and non-chafing. Note the back has minimal padding, so hard-packed gear may press uncomfortably, it ventilates best when not overpacked, and one compartment is tricky to reach while running.[1,3,4,5,6] | Grvl Skin 4 Hydration Vest: Choose this if you want a lightweight, breathable hydration vest for running at any pace, with two included 500 ml (17 oz.) Hydrapak flasks in easy-reach front flask pockets and a Quick Link chest system that lets you tighten or loosen the fit on the move. It suits runners who prioritize fast access over maximum storage, since its front-loaded design has zippered pockets front and back but a more minimal back panel; one reviewer reports far less heat buildup and all-day comfort compared with bulkier trail packs. Note that it comes in X-small, small, and medium at this listing, and the listed 6.9 oz. (195 g) weight is not stated to include the flasks (the vest alone is reported at 5 oz. / 142 g).[8,9,10,11] | Adv Skin 5 Hydration Vest: Choose this if you want a lightweight (200 g / 7 oz), fitted hydration vest for demanding endurance runs, with easy-access front flasks — it includes two 500 ml (17 oz) Hydrapak flasks and can also carry an optional 2 L reservoir. Its 1.3-gallon (5 L) capacity and stable Y design suit runners who travel light; users report long-distance comfort and plenty of storage, though one notes the mesh against bare skin feels slightly abrasive (fine over a thin shirt), and the latest version swaps side pockets for a lumbar sleeve, so it offers less room than Salomon's larger 12 L vest.[12,13,14,15,16,17,18,19,20] |
Image Analysis
3 images- 01
Product
Front view of a black hydration vest worn on the model's torso, showing shoulder flask pockets, front adjustable cords, and visible soft flasks/bite valves.
- Vest overall shapeSleeveless, cropped vest worn over the upper chest with two padded shoulder pockets and a central open front closed by a crisscrossed elastic cord system.
1 region
x 0.23 · y 0.10 · w 0.54 · h 0.28 (high) - Shoulder pocket constructionEach shoulder has a vertical zippered pocket with a soft-flask inserted; pocket fabric appears slightly padded and shaped to cup the flasks.
2 regions
x 0.23 · y 0.08 · w 0.22 · h 0.20 (high); x 0.55 · y 0.08 · w 0.22 · h 0.20 (high) - Front closure cordsThin black elastic cords cross between the two front panels in an X pattern and are tensioned with small cord locks.
1 region
x 0.33 · y 0.16 · w 0.34 · h 0.20 (high) - Soft flasks and bite valvesTwo soft flasks with translucent bite valves protrude from the top of the shoulder pockets; valves are light grey/translucent.
2 regions
x 0.24 · y 0.05 · w 0.12 · h 0.10 (high); x 0.64 · y 0.05 · w 0.12 · h 0.10 (high) - Small orange accessoryA small bright orange plastic clip or toggle is attached to the right-side (viewer left) chest area of the vest.
1 region
x 0.53 · y 0.14 · w 0.04 · h 0.05 (high) - Vest material and colorVest fabric is smooth, matte black with stitched panels and slightly glossy zipper tape visible on the shoulder pockets.
1 region
x 0.23 · y 0.10 · w 0.54 · h 0.28 (high) - Brand text on left pocket“SALOMON”
1 region
x 0.24 · y 0.08 · w 0.11 · h 0.07 (high)
Other
Studio lifestyle shot of a model wearing the vest against a plain light grey background. Even soft lighting with minimal shadowing; model centered and cropped near mid-thigh.
- Model pose and framingFrontal view of a standing model cropped near mid-thigh, left arm bent to touch the left shoulder pocket and right arm hanging straight.
1 region
x 0.05 · y 0.00 · w 0.90 · h 1.00 (high) - Background and lightingNeutral light grey seamless background with soft, diffuse frontal lighting producing minimal shadows.
- Visible additional clothingModel wears a dark sports bra with a bright blue band and dark shorts with bright blue trim; these garments are not part of the observed product.
1 region
x 0.30 · y 0.30 · w 0.40 · h 0.35 (high)
Colors
black· vest fabric#140C0Btranslucent light grey· soft flasks and bite valvesbright orange· small clip or toggle- Vest overall shapeSleeveless, cropped vest worn over the upper chest with two padded shoulder pockets and a central open front closed by a crisscrossed elastic cord system.
- 02
Product
Front-facing black running hydration vest with open front, dual chest pockets holding soft flask mouthpieces, crisscross adjustable bungee closure, mesh back panel, and zippered right-front pocket.
- Overall shapeSleeveless vest with a U-shaped front opening and wide shoulder straps; front panels are slightly curved at the hem and meet in the center via an adjustable bungee system.
1 region
x 0.06 · y 0.04 · w 0.88 · h 0.92 (high) - Material and textureOpen honeycomb mesh panel covers the central back and upper front inner area; front side panels are a smooth, matte stretch fabric with reinforced binding along edges.
1 region
x 0.22 · y 0.12 · w 0.56 · h 0.76 (high) - Chest pocketsTwo top-loading chest pockets on left and right front, each holding a soft flask with visible translucent white bite valve; left pocket has a visible printed logo.
2 regions
x 0.06 · y 0.22 · w 0.42 · h 0.34 (high); x 0.52 · y 0.22 · w 0.42 · h 0.34 (high) - Bungee closureCentral elastic cord routed in a crisscross pattern down the front, held by four small ladder-lock cord stops and a sliding cord lock on the left side.
1 region
x 0.34 · y 0.26 · w 0.32 · h 0.58 (high) - Right-front zip pocketVertical zippered pocket on the right front panel with a visible black zipper and fabric gusset.
1 region
x 0.58 · y 0.46 · w 0.22 · h 0.36 (high) - Small whistleBright orange rectangular emergency whistle attached to a short black cord on the right chest pocket area.
1 region
x 0.59 · y 0.28 · w 0.06 · h 0.09 (high) - Brand text on left pocket“SALOMON”
1 region
x 0.12 · y 0.26 · w 0.18 · h 0.08 (high) - Soft flask mouthpiecesTranslucent white silicone bite valves of two soft flasks protrude from the top of each chest pocket.
2 regions
x 0.06 · y 0.18 · w 0.14 · h 0.12 (high); x 0.80 · y 0.18 · w 0.12 · h 0.12 (high) - Edge bindingNarrow fabric binding runs along all exposed edges of the vest including armholes, shoulder straps, and front opening.
1 region
x 0.06 · y 0.04 · w 0.88 · h 0.92 (high)
Other
Studio product shot on a neutral light gray background with soft even lighting and a faint shadow under the vest; image is centered and cropped to show the full front of the vest.
- Background and lightingEven, diffuse light on a uniform light gray background producing minimal harsh shadows and one soft shadow beneath the vest.
- Shot compositionVest centered in frame and photographed flat-on from the front with no visible mannequin or model.
Colors
matte black· main front panels#0E0E0Eblack mesh· mesh back panel#141414translucent white· soft flask mouthpiecesbright orange· emergency whistle- Overall shapeSleeveless vest with a U-shaped front opening and wide shoulder straps; front panels are slightly curved at the hem and meet in the center via an adjustable bungee system.
- 03
Product
Rear view of a black hydration-style vest showing a central soft-shell back panel with vertical zip pocket, elastic cord attachment system, mesh side panels, and vertical brand and model text.
- Overall shapeSleeveless vest with a central back panel that is rectangular with slightly tapered top and bottom, and two large open armholes leading to wide mesh side panels.
1 region
x 0.06 · y 0.04 · w 0.88 · h 0.92 (high) - Back panel materialSmooth ripstop-like woven nylon or similar synthetic panel covering the center back with a faint square texture visible across the surface.
1 region
x 0.28 · y 0.07 · w 0.44 · h 0.82 (high) - Mesh side panelsOpen honeycomb mesh panels on both left and right sides extending from the armhole edges down to the waist, appearing breathable and semi-transparent.
2 regions
x 0.02 · y 0.14 · w 0.24 · h 0.64 (high); x 0.74 · y 0.14 · w 0.24 · h 0.64 (high) - Vertical zip pocketRight-side vertical zippered pocket on the back panel with visible zipper tape and a small pull tab; zipper track runs approximately parallel to the vest centerline.
1 region
x 0.60 · y 0.10 · w 0.18 · h 0.48 (high) - Elastic cord systemThin elastic cord threaded across the central back in a crisscross pattern with a small plastic cord lock near the left-middle and small cord anchor points at top and bottom.
1 region
x 0.22 · y 0.30 · w 0.58 · h 0.44 (high) - Top hanging loopSmall fabric loop centered at the top edge of the back panel for hanging, stitched into the neckline seam.
1 region
x 0.46 · y 0.05 · w 0.08 · h 0.06 (high) - Lower printed model text“White printed text near the lower center of the back panel reading 'ACTIVE SKIN' on one line and '4 W' on the next line.”
1 region
x 0.40 · y 0.66 · w 0.20 · h 0.14 (high) - Vertical brand text“White vertical text running down the upper center of the back panel reading 'SALOMON'.”
1 region
x 0.44 · y 0.14 · w 0.12 · h 0.30 (high) - Armhole and hem bindingElastic fabric binding trims the armholes and bottom hem in a slightly glossier black material contrasting the matte mesh and back panel.
3 regions
x 0.00 · y 0.12 · w 0.12 · h 0.12 (high); x 0.88 · y 0.12 · w 0.12 · h 0.12 (high); x 0.18 · y 0.80 · w 0.64 · h 0.18 (high) - Small reflective tab on cordSmall rectangular tab with a subtle reflective appearance attached to the end of one cord segment near the left side.
1 region
x 0.18 · y 0.42 · w 0.05 · h 0.06 (medium)
Other
Studio product shot on a neutral light gray background with even diffuse lighting and minimal shadows; image is centered and top-down cropped evenly around the vest.
- Shot compositionVest photographed flat and centered on a plain light gray background with the back panel facing the camera; entire product is visible and evenly framed.
- Lighting and shadowsEven diffuse lighting with soft shadow visible beneath the lower edge of the vest, minimal specular highlights on zipper pull and cord hardware.
- Image qualityHigh resolution with clear detail and legible printed text; no visible motion blur or noise.
Colors
matte black· central back panel#1C1C1Cdeep black mesh· mesh side panels#0D0E0Dbright white· printed text and logo- Overall shapeSleeveless vest with a central back panel that is rectangular with slightly tapered top and bottom, and two large open armholes leading to wide mesh side panels.
Brand PDP Lookup
- Brand
- Salomon
ACTIVE SKIN 4 Unisex Running Vest with flasks included
Variants
3 SKUsDocuments & Data
Reddit Insights
1 threads · r/trailrunningVery limited discussion: the Active Skin 4 is noted to lack side pockets and have less back storage compared to the ADV Skin.
Only an informational comparison, no positive or negative sentiment expressed.
Themes
Watch Out For
Compared To
vs Salomon ADV Skin
Active Skin 4 has no side pockets, less back storage, and a zipper on the back.
Source Threads
Comparison of Active Skin 4 to ADV Skin
Friends have active skin 4 and difference to adv is noticeable. Sides don't have pockets, while ADV has a pocket all around. I think there is also bit less space on the back (it has zipper).
u/shure_slor/trailrunningView thread →