A backpack such as this one can be very useful for a number of things. This bag is made from nylon and it is targeted towards men.
From Millets
Talon 33 Daypack - Blue, Blue - One Size
The product is available from £102.50 at international stores.
Trekkinn
Osprey Talon 33l Backpack Blue S-M
This product is also available at 2 unverified merchants.