Switch up the back length on the Freeflow 30L hiking pack, so it’s dead comfortable all day Whether you’re packing up for a picnic, or heading up Ben Nevis. Hotting up? Don’t fret. Our Freeflow technology allows air to flow between your back and the pack. So you keep cool and sweat doesn’t build up on the back. 30 litres gives you loads of space for all your odds and ends. Plus, plenty of pockets so you can load up for a great time outdoors. Comes with all the bells and whistles. Including a whistle. Just in case. More info