High-altitude camps and long trips in sunny climates will wreak havoc on your tents and other gear, so protect them with Nikwax Tent and Gear Solar Proof. This spray-on protector works on all weatherproof textiles and increases water repellency and UV protection. Simply spray evenly on your chosen fabric-using a sponge or brush to spread evenly-then wait a couple minutes and wipe away the excess with a damp cloth. Use about 2fl oz for each square meter of fabric, and be careful to wipe away the excess as it can sometimes alter color.