For everything from cold lift laps to off-season trail runs, this buttery soft baselayer is our top choice for staying warm and dry through it all. Made with our signature PeakWool® fabric, this powerful blend combines the best of merino wool’s warmth and wicking with the softness, durability and stretch of TENCEL™, nylon and elastane fibers. Flatlock seams minimize friction and thumbholes enable easy layering.