HOPSOOKEN Hiking Waterproof Backpack/Running Waist Pack 25l Travel Ultralight Lightweight Climbing Camping Backpack for Men and Women, Sports Cycling Motorcycle Outdoor Daypack VERSATILE - Can be used both as waist pack and folding backpack. The backpack is more suitable for camping, biking, hiking, traveling, going to school,etc., because it can provide more space to hold your items. While the waist pack is more suitable for walking the dog, shopping, going for a walk, running and so on. In a word, it is a perfect design and can be easily meet different needs. LARGE SPACE - By reasonable designing, there is enough space to hold your items either as backpack or as waist pack. Backpack size: 11''x 15.75''x 5.1'' (LxHxW); Waist pack size: 11''x 6.69''x 5.1(LxHxW) HIGH QUALITY MATERIAL - Waterproof & lightweight nylon material, effectively prevent your belongings from the dust, rain and dirt. Considering the folding design, the material is thin and soft, but it is durable enough to support your items, and feels very good to touch. Please rest assured to use. PORTABLE DESIGN - It could be easy to fold as waist pack when you have not too many items. Two pockets can be enough to hold your phone, ipad, keys, documents, money, cups, umbrellas and etc.. Once you unfold the waist pack, it will become a beautiful backpack to hold your clothing, books, computers, ipad, water bottles, and more things. SALE SUPPORT - Our product has strict quality inspection. If there is any quality problem when you get it, please kindly contact us, we will be glad to help you solve the problem. Your satisfaction and love is our best encouragement. Any questions on our customer services , welcome to suggest, thanks.