Men's Base Layers

Warm, lightweight, and with a bit of stretch, the Syn Down Hybrid Jacket is the perfect layer to throw on under a shell, for hanging in the parking...

Add the ultimate base layer to your day with the 509 FZN Merino Crew Shirt. Made with a Merino/spandex blend for stretch and all-day comfort, this ...

FZN stands for Five Zero Nine, not frozen, and that’s exactly how you’ll feel in the 509 FZN Merino Hoodie. The low-profile balaclava hood fully se...

FZN stands for Five Zero Nine, not frozen, and that’s exactly how you’ll feel in the 509 FZN Merino Pant. This base layer pant provides versatile m...

CKX SIZING CHART - P4-Flex fabric (polyester)- Built-in 100g Thermosilken insulation by ultrasonic quilting- Comfortable fleece collar- Stretchable...

KLIM SIZE CHART KLIM Tactical Base Layers are specifically engineered for off-road and dual-sport riders looking for effective low-profile next-to...