Arbpro Bucket BackpackThe Arbpro Bucket Backpacks come in three different sizes and are made of sturdy PVC material. The versatile bags have 2 shoulder straps, but can also be carried with the 2 webbing handles. The bags include plastic inserts that keep the bag upright even when its empty. The bag also features side pockets with Velcro flaps. Made with thick 680 gr m2 PVC material Plastic inserts to keep the bag upright when empty Side pockets with Velcro flaps Two