This backpack which is designed based on casual and multipurpose. It made from the polyester material for better comfort. ADJUSTABLE SHOULDER STRAP The shoulder straps of this bag pack are fully adjustable according to your convenience. It has an anti-rust coating to preserve from corrosion. PERFECT GIFT It is a perfect gift item for any college or school student. So go ahead and surprise your family and friends with this casual polyester bag! The big backpack is great for indoor/outdoor activities. Served as everyday/weekender backpack, large school backpack for teen boys/girls, laptop backpack or spacious college backpack, you can use it at anywhere for travel, Camping, Hiking, Overnight trip, etc WATER-RESISTANT Its water-resistant material helps keep items safe from wet, rainy weather, making the backpack a great choice for all seasons.