Smartwool Mens Merino 150 Pattern Boxer Brief

Size Chart
Light Gray
Bright Cobalt

Every epic adventure starts with a solid foundation, and the last thing you want to overlook is the first layer you put on. Ultra-comfy Merino next to skin helps regulate body temperature, manages moisture, and resists odors whether you're in Tennessee or Timbuktu. The Men's Merino 150 Pattern Boxer Brief features smooth, flatlock seams and a wide elastic waistband with Merino lining. Made from Smartwool's ultra-soft and durable Merino 150 fabric.

This item is non-returnable.


  • Slim Fit
  • Mid-Rise
  • Lightest weight Merino jersey fabric uses a nylon core to increase durability while keeping Merino wool next to the skin
  • Fully functional fly
  • Wide elastic waistband (40 mm) designed for ultimate comfort; keeps Merino next to skin
  • Flatlock seam construction designed to eliminate chafing
  • Size M: 4.75" Inseam (12 cm)
  • 87% Merino Wool, 13% Nylon Core