Smartwool Mens Merino 150 Baselayer Long Sleeve

Size Chart
Tibetan Red
Light Gray Heather
Light Alpine Blue
Iron Heather
Iron Stripe
Pacific Stripe
Cardinal Red

Spring skiing or summer camping? The year-round Smartwool Merino 150 base layer long sleeve is game for either thanks to the body temp regulating and no-stink properties of Merino. Featuring Core Spun technology, Smartwool wrapped Merino around a nylon core for added durability while still keeping the comfort of ultra-soft Merino next to skin. They added smooth flatlock seams to help minimize chafing and offset shoulder and side seams to lie smoothly beneath pack straps.


  • Slim Fit
  • Lightweight, 150-Weight Micro Merino
  • Crew Neckline
  • Raglan Sleeves Eliminate Top Shoulder Seams
  • Lightweight Merino jersey fabric uses a nylon core
  • Flatlock Seam Construction Designed to Minimize Chafing
  • Garment Weight: 170 g = 6 oz
  • Knit in Vietnam: 87% Merino Wool, 13% Nylon Core