This base layer/puffy/jacket/pant combo can be relied upon when the temperatures plummet to bone-chilling levels. The Mill Henley’s waffle knit helps to wick sweat away, and spandex incorporated into the polyester fabric enhances mobility. The Pulse II is packed with insulation in the body and sleeves for warmth, and its DWR finish provides excellent water resistance. The Parsons’ two-layer Gore-Tex construction battles moisture and ensures breathability, while its 40 grams of body insulation keeps you toasty. The bib pant utilizes a 10K/10K laminate with a DWR finish, as well as a super durable twill fabric that protects against brushes with rocks, trees and the occasional Yeti.