Cognitive Surplus Cellular Biology Illustration Tote Bag. (10 oz Recycled Cotton) 100% Cotton Imported 18" w x 14.5" h, 5" gusset, 22" shoulder straps Made with eco-friendly, sustainable recycled cotton High-quality 10 oz cotton has a soft feel and is strong enough to hold a load of books Bag holds several large text books or a load of groceries Use as a school bag, purse, handbag, gym bag, grocery bag or fill it with all your library books!