Breathable hydration pack

Designed for road cycling, running, hiking, this hydration pack is compact and small, keeping your back light and stable without much wind resistance.This waterproof cycling hydration backpack is made of nylon material with adjustable waist and shoulder straps to adjust to your body and has an inner liner for drinking water. It is perfect for hiking, camping, school, summer beach trips, etc. The water bag has passed the air pressure test, is completely pressure-resistant and leak-proof, and the double-sealed surface technology greatly improves durability. The waterproof running hydration underwear features customized reflective tape, designed to improve safety during marathons, jogging and trail running in dark conditions.Qty for 3k and over by ocean.