Salomon Active Skin 4 Set Hydration Running Vest - Red Dahlia / High Risk Red - Size M

Weighing just 260 g with two 500 ml soft flasks included, the Salomon Active Skin 4 Set redefines lightweight hydration for trail and ultra running. This 4-liter vest combines a breathable 100% polyester body with SensiFit™ technology, delivering a snug, bounce-free fit that moves with you over any terrain.

Overview

Built for runners who demand efficiency, the Active Skin 4 Set carries everything you need without excess bulk. The main stretch compartment and multiple front pockets keep nutrition, layers, and essentials within reach, while the integrated whistle and reflective details add safety for early-morning or late-night sessions. The quick link sternum strap allows one-handed adjustment on the move, and the elastic pole holder system secures your trekking poles when the trail turns technical.

What stands out

• SensiFit™ construction wraps the body for a precise, stable fit that eliminates chafing and bouncing.
• Two 500 ml Salomon soft flasks sit in dedicated front pockets with easy-access valves—hydrate without breaking stride.
• Breathable 100% polyester fabric and a back insert of 89% polyamide / 11% elastane wick moisture and dry fast.
• Multiple storage options: 2 front stretch pockets, 2 top stretch pockets, 1 main stretch compartment, and an internal bladder compartment (bladder not included).
• Integrated safety whistle and reflective details enhance visibility and peace of mind on solo runs.

Technical details

• Volume: 4 liters
• Hydration system included: 2 x 500 ml Salomon soft flasks
• Bladder compatibility: Yes, up to 1.5 L (bladder not included)
• Fit technology: SensiFit™
• Adjustability: Quick link sternum strap
• Pockets: 2 front stretch, 2 front flask, 1 main stretch, 1 internal bladder, 2 top stretch
• Material composition: Body 100% polyester; Lining 100% polyamide; Back insert 89% polyamide, 11% elastane
• Breathability: High
• Pole holder: Yes, elastic loops
• Whistle: Integrated
• Reflective details: Yes
• Color: Red Dahlia / High Risk Red
• Size: M
• Back length: 38 cm
• Weight (with flasks): 260 g

Our verdict

For runners who want a minimalist yet fully capable hydration vest, the Salomon Active Skin 4 Set strikes the perfect balance. It’s featherlight, breathable, and loaded with smart storage—making it an ideal companion for long trail days or fastpacking adventures.