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.

Easy Hydration

Two chest pockets provide fast on-the-go access to your flasks. 2 x 500ml soft flasks included. Also compatible with a 1.5-liter bladder.

Optimized Storage

Everything you need for ultra-trail adventures in easy reach with plenty of room and secure pockets. Compatible with our Custom Quiver to carry your poles.

• Volume: 4 liters
• Weight: 195g

Size

Chest: Measure around the chest horizontally at the widest point

• XS: 85-91cm
• S: 91-97cm
• M: 97-103cm
• L: 103-109cm
• XL: 109-118cm