My opinion on base layer fabrics - based on their molecular/chemical composition and how to build a layering system for winter backpacking and camping. Works for ski touring or any other cold weather activity. Check out my 20 pound winter camping gear list: https://youtu.be/jDgtPEELmPo Some of the gear I use: ULA Equipment Catalyst Backpack - 48 oz / 1360 g https://ula-equipment.9xrw.net/5bRX9j Simond Down Mountaineering Parka - 23.1 oz / 655 g https://decathlon-canada.mkr3.net/Zd2P9q Eddie Bauer Sandstone Backbone Grid Hoodie Softshell - 16.9 oz / 480 g Mammut Alugator Light Shovel - 16.6 oz / 475 g MSR Front Range Pyramid Tent - 28.7 oz / 814 g Thermarest NeoAir XTherm MAX ground pad - 25.8 oz / 731 g Marmot Lithium -18C Sleeping bag - 47 oz / 1333 g MSR Whisperlite International Stove - 13.7 oz / 388 g MSR Titan 2L Kettle - 6.8 oz / 193 g Fenix HM50R Headlamp - 2.7 oz / 77 g Garmin inReach Mini Satellite Communicator - 3.4 oz / 96g Affiliate links to provide a small kickback to me at no additional cost to you. It helps support the channel. 6 Pieces of gear you need for winter camping and backpacking https://youtu.be/s1oW6idonc4 My sub 20 pound late season/early winter ultralight gear list https://youtu.be/aaUwSLxaU4Q My cold wet weather backpacking footwear and boot system https://youtu.be/mDt4yYhL7oY Connect with me: https://www.instagram.com/kane_does_outdoors/ #backpacking #hiking #wildcamping #ultralightbackpacking #gear