Key features:Double stitching at stress points adds valuable security to seams, handles, and straps, enhancing the durability.Comfort with featuring ergonomic designed adjustable padded reinforced shoulder straps, make the backpack all day use as a breeze.Whether to cater your day-to-day organizing basis or your "Extra-curricular" Uses, our backpack is versatile enough for many use.The shoulder bag is made of durable and waterproof material, and the metal zipper is very quiet. the two straps fit very well, the grip is very comfortable to make carrying easier and more flexible. Backpack suitable for office, work，live.