Independence Day Sale! Save 20% with Code: JULY4TH (ENDS WEDNESDAY)


Your Cart is Empty


Men's Merino Base Layer Short Sleeve

Size Guide

Your adventures require a versatile base layer so we created one. featuring the power of merino wool for a breathable wicking layer that adapts with your activity level.


CloudLine socks are backed by a hassle-free lifetime guarantee and made in America

Every base layer we make is made in the USA and backed by a hassle-free lifetime guarantee. If there is ever an issue we’ll replace it. No hassles, conditions or strings attached.

Base Layer Features

  • Men's Slim Fit: an athletic fit that moves with you
  • Highly Breathable: merino wool quickly moves moisture away from the body to evaporate and dries quickly
  • Incredible Comfort: we select the highest grade itch-free merino wool to create a fabric that feels smooth and soft
  • Odor Resistant: naturally anti-microbial to keep you smelling fresh
  • Flatlock Stitching: minimizes chafing for all-day comfort no matter the activity
  • Wrinkle Release: high quality merino wool fibers return to their natural shape when bent to naturally resist wrinkles
  • Durable: a nylon core encased by 100% merino wool creates a fabric with the durability of synthetic fibers and performance of merino.

Base Layer Specs

  • 150 Ultralight: 150 gsm weight merino fabric knit from ultra-fine merino with a nylon core for durability
  • Materials: The perfect balance of softness, fit, and durability: 87% merino wool, 13% nylon
  • Garment Weight: 157 g / 5.6 oz
  • American Made: We are proud to make our base layers in the USA from imported fabric
  • Lifetime Guarantee: Backed by our hassle-free lifetime guarantee
  • Care: Machine wash warm gentle cycle, do not bleach, do not dry clean, tumble dry low or hang dry, cool iron only

High Performance Merino Wool

Join Us on the Trail