5 Mission workshop Rhak From £279.79, missionworkshop.com
If you have to ascend a mountain to get to the office, the military-spec Rhake is as rugged as it gets, with a choice of HT500 or MultiCam Cordura fabric; you can also spec super-tough Cobra AustriAlpin front connectors. Want pockets? This thing has all of them, with a laptop insert and hidden tablet pocket. Each gets a weatherproof lining and water-resistant zips. Well-padded straps make it comfy to wear, though the chest strap lacks adjustment.