Lightweight design with breathable material in well made condition, you will feel more comfortable to get this backpack for your outdoor sport activity. This 3L hydration bladder is made from high quality TPC food-grade materials, wear-resistant, corrosion-resistant and no peculiar smell. Large opening for easy cleaning, you can add ice cubes for an even cooler drink. It is an ideal water replenishment equipment for you to keep moisture when living outdoors. The portable hydration water pack is unisex, suitable for men and women, and also gifts for Christmas, Thanksgiving, Father’s Day, Mother’s Day, birthday gifts and other holidays. Your logo is welcome.