The biking backpack, made of ultralight,durable and tear-resistant nylon fabric material,provides extra strength and long-lasting performance with the lightest weight. The ergonomic design makes your back more comfortable,the soft, breathable mesh pad on the back keeps your back cool and dry. You can use it as a cycling backpack, casual daypack, travel backpack, mountain backpack, perfect Gift for Christmas, New Year, Thanks Giving Day, Groomsmen, Birthdays, Father's Day.