Shoulder straps with water pipe channel, it is easy for drinking water while cycling. (Note:water bladder is not included) This cycling backpack perfectly fits the body. Adjustable chest strap and waist strap can fix the bag, so the bag will not bounce while cycling. With mesh cover on the bottom to hold your helmet. Made of ultralight and tear-resistant nylon fabric. Front strap and back of the bag with reflective strips for safe riding at night. Add your school, sports team, organizational or company logo, emblem or message to customize.