You close this hiking backpack with a zipper. This hiking backpack is made exclusively from nylon and it holds 9 litres.
From Amazon
Osprey Tempest 9 Women's Hiking Pack Bell Orange - WM/L
The product is available from £84.45 at international stores.
Trekkinn
Osprey Tempest 9l Backpack Orange M-L
Sigma Sports
Osprey Tempest 9 Womens Backpack - Bell Orange
Hardloop
Osprey Tempest 9 - Hiking backpack - Women's Bell Orange M/L