INOXTO Running Hydration Vest Backpack, Lightweight Insulated Pack with 2 x 500ML Bottles + 1.5L Water Bladder Bag Daypack for Hiking Trail Running Cycling Race Marathon for Men & Women (588 Blue)

INOXTO hydration vest backpack provides a comfortable and convenient experience forhikers. Our hydration backpack features a sleek & slim design, a durable and ultralight backpack that allows you to take essentials. Why choose INOXTO running Hydration vest? 1. High quality zipper 2. Durable sewing reinforcement design (consolidation design, actual durability) 3. The night warning strip design can be used to warn under light source lighting (night warning rule design, night movement warning of arrival under light source illumination). 4. Adjustable chest system for adjusting the position and length of the chest strap (pre-chest adjustable system, adjustable chest position and length)