Smartwool Mens Merino 150 Baselayer Pattern Short Sleeve

Size Chart
Light Gray
Bright Cobalt

From taking the chill out of cool morning bike rides to hiking to the summit of Quandary Peak, you need a versatile layer that works as hard as you do. The year-round Merino 150 base layer short sleeve is up to the challenge thanks to the body temp regulating properties and breathability of Merino. Featuring Core Spun technology, Smartwool has wrapped Merino around a nylon core for added durability while still keeping the comfort of ultra-soft Merino next to the skin. Smooth flatlock seams help minimize chafing and offset shoulder and side seams to lie smoothly beneath pack straps. The Men's Merino 150 Base Layer Short Sleeve performs well on its own in warmer temps or layers up easily when cooler weather rolls in.


  • Slim Fit
  • Lightweight, 150-Weight Micro Merino
  • Crew Neckline
  • Flatlock Seam Construction Designed to Eliminate Chafing
  • Heat Transfer Logo at Left Hip
  • Raglan sleeve design removes shoulder seams
  • Lightest weight Merino jersey fabric uses a nylon core to increase durability while keeping Merino wool next to the skin
  • 87% Merino Wool, 13% Nylon Core