When your adventure calls for more miles with more gear, the UltrAspire Traverse Hydration Pack is built to go the distance with you. Designed as a high-performance race pack, this 20-liter vest carries everything you need while staying comfortable on longer runs and ultramarathons. The vest hugs your body with a low-profile, bounce-free fit that feels secure as you charge down the trail. UltrAspire's MaxO2 adjustable sternum system lets you fine-tune the fit with dual vertical adjustments, so the pack stays locked in place without restricting your breathing or movement. Breathable, moisture-wicking mesh panels help manage moisture as you sweat, while soft microfiber edges reduce chafing in high-friction zones.

Storage is thoughtfully placed all around the vest, making it easy to access what you need without breaking rhythm. Up front, dedicated bottle pockets with compression and cord locks keep hydration close and bounce-free. Zippered shoulder and front pockets give you quick, hands-free access to nutrition, layers, or small essentials on the move. Around back, a spacious main zippered compartment, rear stash pocket, and side storage provide room for extra layers, fuel, and gear. When running poles come into play, connection points on both sides of the vest make quiver carry easy.