If you're going hiking, this is a suitable backpack. This bag is made from nylon and it is mostly intended to be a men's bag.
From Amazon
Osprey Aether 55 Men's Backpacking Pack Deep Water Blue - L/XL
The product is available from £165.76 at international stores.
Trekkinn
Osprey Aether 55l Backpack Blue,Black L-XL