These hiking rucksacks seem reasonable at £24.99, they will be instore at Lidl from Monday 19/05/14.
Product Information :-
Hard-wearing, tear-resistant Ripstop outer material
Air Dynamic Flow System for optimal air circulation
Ergonomically shaped straps with breathable padding
With 3M Scotchlite™ reflective material for improved visibility
Includes waterproof cover
Capacity (L): 70