Polartec Power Wool fabric: Provides natural temperature regulation and odor control for comfort in changing conditions
Bi-component knit: Fine merino wool and synthetic fibers work together for optimal performance and durability
Structured collar: Maintains shape and offers consistent coverage without restriction
Deep front zipper: Allows precise airflow control during movement and transitions
Four-way stretch: Enhances mobility and comfort for active pursuits
Summarized by Shop
Alchemists sought to refine elements from the natural world, improving function through balance and careful process. The Alchemy collection applies that same discipline to base layers by combining natural fibers, advanced textiles, and considered construction to create a system built for consistent performance across changing environments
Material
Polartec Power Wool (merino wool and synthetic)
Closure
Deep front zipper
Collar
Structured
Sleeve Length
Long
Pattern
Solid
Available Sizes
S, M, L, XL, XXL
Summarized by Shop
4.8
8 ratings
5
4
3
2
1
Been wearing these for years. Solid mid layer. The cut and fit is perfect. This is a great additional layer over my work polo shirt, to provide just enough to stay comfortable when it’s cool outside.
J
JOSHUA · January 23, 2026
Is this the active winter base-layer mithrel your looking for… maybe. Feels great and size is spot on.
Ill update the review when i put it through its paces.
Trick is always how sturdy is the stitching because thats whats going to give if your wearing this hot and cold for days on end. But it feels right