The GoKnit Classic Project Bags are made with ripstop nylon, machine washable have an inner loop to keep your yarn in the bag and have a secure outer closure. The bag will easily squish to fit into any backpacks, brief cases or luggage to keep your projects close and safe.The large measures 11"x13" and can be carried like a backpack. A great choice for a knitting or crochet bag that will last for years. Handcrafted in the USA.