The Lekker Backpack Potvis is made of 600 PVC Tarpaulin. This means that are 100% waterproof and built to last. It has a foldover roll-top opening that helps you to keep dry and protect your gear on the hockey field (but also when hiking, surfing, navigating, etc). There are separate compartments where you can put your clothes, shoes, shin guards and other stuff.  With side straps to grip your stick and a front pocket.
 
Height (max): 59cm
Height (closed): 43cm
Width: 41cm  
Depth: 13cm  
Volume: 28L