10 Essentials The 10 Essentials Navigation: Topo map, compass, GPS/GPS appSun Protection: Sunscreen, sunglasses/goggles, hatInsulation: Extra layers, wool hat, gloves/mittens, buff, hand warmersIllumination: Flashlight, headlamp, extra batteriesFirst Aid: Bandages, antiseptic wipes, splintFire: Lighter/waterproof matches, fire starter, sawTools: Knife, zip ties, duct tape, whistle, multi-tool, cell phone, avalanche gearNutrition: High energy snacks (jerky, trail mix, etc.)Hydration: Water/filter/purifier, cup to melt snowShelter: Sleeping bag, tent/tarp/bivy/space blanket