Fit Guide:

Removable valve core: The whole valve stem on the S-Tubo is removable to allow for a crazy small pack size when it's rolled up

15L capacity

2x Extra pieces for larger frames

Ride Concepts Sidekick Socks - XL - Black PDP|Option Fit Guide:Bold and steadfast, Sidekick is the Robin to your Batman, the Calvin to your Hobbs, the Peanut Butter to your Jelly! Its always there for you. Suit up in the Sidekick and save the day as a trail building, gap sending vigilante. Cape sold separately. FEATURES: 98% Polyamide Nylon 2% Elastane Rib knit cuff for improved fit Mesh articulation zones for increased breathability Arch band for improved support and fit Seamless heel and toe for increased