Universal Crafts Yarn Backpack. Universal Crafts really have thought of everything when it comes to this knitting/yarn storage backpack. There are removable compartments, and interior compartments with holes to thread your yarn through so you can keep your skeins separate for colour work; the see-through cover in the front pocket enables you to see what's inside at a glance; the side and front pockets have space for needles (plus hooks) and any of your other bits and pieces. This bag comes with two padded straps and has two reinforced handles, giving you two different carrying options. This backpack comes with a built-in USB charger outside and a built-in charging cable inside, this USB backpack offers you a more convenient way to charge your phone while walking. Please note this backpack doesn't power itself, USB charging port only offers easy access to charge (Power Bank is not included). Size: L 33cm x W 17cm x H 41cm.