You should always start by checking the instructions in the care label. But as a general rule of thumb, we advise only washing your gear when it really needs it. Machine washing leads to wear and tear of your clothing and sleeping bags, and places strain on zips, Velcro and other trims. And by using a lot of water and energy, too much machine washing isn’t kind to nature.
Instead, we recommend hand washing dirty areas with warm water, mild soap or detergent and a sponge, or even just hanging your clothing or sleeping bags up for airing.
If you do choose to machine wash, washing at 30°C uses less energy than washing at 40°C. Use a detergent suited to the garment(s) you’re washing too. And don’t use a fabric softener. It leaves a waxy residue on your clothing that can impair the functionality of your gear: affecting its ability to wick away moisture, for instance.
Likewise, tumble drying – which is a complete no-no for some products – also places stress on your garments. So whenever possible hang up your clothing –down is an exception – to dry instead, preferably outside.