As a stepping stone to take your trail running to the next level on shorter distances, our updated ACTIVE SKIN 4 is now even easier to use and comfier to wear. The fabrics are still just as soft and breathable, the fit is ultra-secure and the revamped chest pockets provide effortless access to your flasks.

Features
Back System: 3D Comfort
Bag Construction: SensiFit™ stretch, breathable fabrics with lightweight adjustments for an optimized fit and enhanced stability.

Fabrics
Benefit: Simple and easy to use.
Back Body: 100% Polyester
Back Insert: 89% Polyamide, 11% Elastane
Body: 100% Polyamide
Body Insert: 85% Polyamide 6, 15% Elastane
Lining: 100% Polyamide

Mfr Claimed Weight
195g 
255g (Including Accessories)