Nathan Trail Mix Plus 3.0 Insulated Hydration Running Belt with Flask and Storage Pockets — Lightweight Water Bottle Waist Pack for Running, Walking & Hiking

Sizing & Fit: One-size-fits-most design suitable for the majority of running waist pack users; Brand Inspiration: Nathan’s run-focused gear collection emphasizes thoughtful construction and premium materials to help athletes perform better mile after mile; Functional Hydration: Classic water-bottle belt updated as the Trail Mix Plus 3.0 with improved fabric and redesigned pockets, plus a redesigned holster for secure one-handed flask access and anti-bounce stabilization; Practical Layout: New expandable front zippered compartment accommodates most smartphones, exterior mesh pocket for quick-access items; includes running pack features such as dual shock cords with side tension locks and elastic strap keepers for excess webbing; Specifications: Weight without flask 8 oz, weight with flask 10 oz, storage volume 0.5 L (30.5 cu in) — ideal as a minimalist running waist pack.