UltraBase Merino Wool Base Layer Tights for Men

Online exclusive! Heat check? Our UltraBase layers bring it big time with a super-soft merino wool blend and Built-In Warm tech♨️ Elastic waistband.

Men's Classic All-Season Merino Base Layer Bottom

Online exclusive! Heat check? Our UltraBase layers bring it big time with a super-soft merino wool blend and Built-In Warm tech♨️ Elastic waistband.

Old Navy - UltraBase Merino Wool Base Layer Tights for Men

Online exclusive! Heat check? Our UltraBase layers bring it big time with a super-soft merino wool blend and Built-In Warm tech♨️ Elastic waistband.

UltraBase Merino Wool Base Layer Tights for Men

These merino wool tights are designed to help you maintain the right body temperature.

Men’s Merino Wool Base Layer Tights - MT 500

Base Layer for Running: 14 WeeViews Picks for Cold-Weather, by Brynn Cunningham

Base Layer for Running: 14 WeeViews Picks for Cold-Weather, by Brynn Cunningham

Old Navy UltraBase Merino Wool Base Layer Tights for Men

High-Waisted UltraBase Merino Wool Base Layer Tights for Women

Men's Underwear & Base Layers, Lightweight Base Tops

Old Navy, Pants & Jumpsuits, Highwaisted Ultrabase Merino Wool Base Layer Leggings

Old Navy UltraBase Merino Wool Base Layer Tights for Men