Nathan Trail Mix Plus 3.0 Hydration Running Belt with Flask Holster, No-Bounce Storage Pockets, Insulated, One Size Fits Most

Universal fit: one-size design accommodates the majority of runners and waist carriers. Purpose-driven design: Nathan’s running essentials focus on thoughtful construction and durable materials to support performance mile after mile. Hydration on demand: Trail Mix Plus 3.0 includes an updated flask holster for secure, one-handed access and no-bounce technology to keep fluids stable while you move. Practical storage: oversized expandable front zip pocket fits most smartphones, plus an external mesh stash pocket; features two shock cords with side tension locks and elastic strap keepers for excess webbing. Specs: weight without flask 8 oz, with flask 10 oz; storage volume 0.5 L (approx. 30.5 cu in). Ideal as a lightweight waist pack for running, walking, or hiking.