The karrimor trail 25 daysack is a versatile and comfortable bag that has a padded breathable back system and lots of pockets making it ideal for rambling day hikes and travelling the trail 25 rucksack has a wintunnel backsystem that creates a channel down the centre of your back and features coolmesh at the contact areas in order to increase breathability and comfort while you are carrying your pack and the adjustable padded shoulder straps adjustable chest strap and adjustable hip belt mean th