What could possibly keep you warm until you warm up, then keep you comfortable when you start sweating on the trail? The men's tall REI Co-op lightweight long-sleeve base layer crew is what.
Features
Made of a soft polyester blend that wicks sweat and dries fast to keep you warm in winter and cool in summer
Spandex in the blend gives the fabric 4-way stretch, while underarm gussets ensure you can reach and move with ease
Flatseam construction is comfortable against your skin