The Nathan Sports HyperNight Pinnacle Soft Flask 14 oz is built for runners who want lightweight hydration with enhanced visibility and comfort. Its advanced ExoShot flask technology delivers a supportive ergonomic feel while the soft flask compresses as you drink for easier handling on the move. The proprietary ExoSpine(TM) interior structure provides stability and improved hand feel during long runs and demanding workouts. A grip free ergonomic hand strap with breathable wicking mesh keeps the flask comfortably in place without needing to squeeze or hold tightly. Finished with an all over hex reflective print for standout visibility in low light conditions and an expandable pocket for small essentials this handheld is ready for marathons trail runs hikes and everyday training.