use code SUMMERKICKOFF for 20% off sitewide

| /

Charcoal Heather Black
Olive Night
Blue River


As seen in WIRED Magazine, "The Best Undershirts and Base Layers to Keep You Warm," the Aspect Merino Wool Base Layer crew features a new exclusive design that feels great next to your skin and will keep you warm, dry and comfortable. It also incorporates our (m)Force Technology, to achieve industry-leading durability. Designed for the active lifestyle, this Merino wool top is cut long, so it stays tucked in, and the new discreet thumb loops keep your sleeves in place and disappear when you don't want them.


Product Features
  • Natural and sustainable Merino Wool 180g reinforced with our (m)Force Technology for increased durability, dry times and recovery
  • Class leading durability - 50% stronger* than comparable weights of Merino fabrics
  • Provides versatile mid-weight base layer weight that is warm but not too warm
  • Flatlocked seams
  • Backpack-friendly raglan construction
  • NEW: Discreet thumb loops keep your sleeves in place and disappear when you don't want them
  • Printed neck label
  • Removable care label
  • Long cut, especially for layering, stays tucked in 

We’ve got your back. All of our products are covered by the Ridge Guarantee.    
*The ASTM D3786 Diaphragm Bursting strength test method for the determination of bursting strength of knitted fabrics and describes the measurement of the resistance of textile fabrics to bursting using a hydraulic or pneumatic diaphragm bursting tester.

Fabric Details 

180g (m)Force Merino 18.5M Wool

84% Merino Wool, 16% Nylon

Size M weight- 8.3oz

Merino Benefits

  • Soft - No itch, premium ultra-fine 18.5 micron fibers feel great against your skin.
  • Climate control - Natural temperature regulation means Ridge insulates when it’s cold and lets heat escape when temperatures rise.
  • Moisture management - Ridge natural fibers wick moisture away from your skin to prevent clamminess.
  • No stink - Due to its antimicrobial qualities, Merino wool naturally and permanently resists odor without the use of chemicals. 
  • Sun Protection - UPF 50+ certified

    Sizing and Fit  

    The Men's Aspect Long Sleeve Merino wool Base Layer Crew is designed to fit close to your body with the bonus of extra length for more coverage on the hill.

    Not sure what size to order - click here for our size guide.