Durable. Good looking. Functional. Need we say more? Probably not, but we will anyway. 
This back pack is designed for the tough. A one time purchase for a life time of happiness. The bottom is designed with thick waterproof layer so you don't have to be careful with it. The flap of the top has a waterproof layer as well. 
 
- 30L 
- Heavyweight canvas 
- Wide straps 
- Leather straps