The contents of your daypack for hiking will vary depending on the scope of your adventure, However, there are essentials most trekkers always include. Water is the primary item, as hydration is crucial on the trail; whether you’re going for a short forest walk, or spending the day summiting, you’ll need ample H20 with you. Bringing along snacks to keep you fueled, secure spots for keys and other important things that shouldn’t be left in your car, a first-aid kit, and an extra layer or two are all notable essentials as well. If you’ll be venturing into the backcountry, a GPS or navigational tool is a good idea to throw in your pack too.