Layer up, it’s cold out there. The foundation of any advanced hiking outfit always starts with a high-tech, premium-quality base layer. The trail should never be feared, and to fully perform you must be warm, comfortable and dry. Luckily for you hiking enthusiasts or hiking beginners, we have coupled the below with base layer leggings, long-sleeved t-shirts and quarter zips designed by outdoor giants including Jack Wolfskin, Montane, Icebreaker, Smartwool and many more. Scroll below to revamp your hiking gear collection.