Don’t leave home without it

Sock liners
Yes, you need to put socks under your socks. And at mile 20 you’ll be thankful for these thin, 100% polypropylene liners, which drastically reduce the friction that can lead to blisters. These liners are made by Wigwam. $5. www.wigwam.com (Eric Boyd / LAT)

Sept. 15, 2014 6:41 PM PT

Some Times staffers have climbed the mountain and returned to tell their tales. Here are few pieces of gear they found essential.

Critter-resistant container
Among our fave food protectors is the Bearikade Expedition Mark II. The container features a composite carbon-fiber cylinder and metal parts that are made of strong, light, aircraft aluminum alloy. $245. (805) 693-0550, www.wild-ideas.net (Eric Boyd / LAT)

Water filter
Remove nasty microorganisms from creek water with this device and leave the extra water bottles at home. This Swiss-made Pocket Microfilter by Katadyn is $199. (800) 755-6701, www.katadyn.com (Eric Boyd / LAT)

Bivy sack
A waterproof sleeping-bag cover will protect you from the elements and cancel the need to lug along a bulky tent. The Hooped Bivy by Bibler Tents has is boxy at the head and foot to keep things roomy. $199 and $209. (801) 278-5533, www.biblertents.com (Eric Boyd / LAT)