This hiking backpack closes with, among other things, a buckle and lid. This bag is made from nylon and it is primarily intended to be used by women.
From Amazon
Osprey Tempest 30 Women's Hiking Pack Jasper Green - WXS/S
The product is available from £110.28 at international stores.
Trekkinn
Osprey Tempest 30l Backpack Green XS-S