boblbee megalopolis aero ergonomic hard shell laptop backpack GTX 20L Chrome – Boblbee Sweden This improved ventilation and breathability as well as increased shock absorption. Point 65 Boblbee GTX 25L

Updated 2 March 2009

The Mag Latch closure and use of magnets to hold the shoulder straps against the pack when not in use are outstanding

You can adjust the heater to your desired temperature and it will keep the water within two degrees of that temperature by automatically shutting on or off when the water temperature changes, according to the brand

The better packs often feature more-careful construction, which is visible in details such as sealed and tighter stitching (our pick from Matador) and reinforced bottoms (our pick from WaterField)

To unpack the story of this one brand of backpack is to travel to the heart of early 21st-century consumerism