Smartwool Merino 150 Baselayer Bottom - Women's
SmartwoolMerino 150 Baselayer Bottom - Women's

A shoulder season go-to.

Shoulder season has arrived—it's not cold enough to break out your heavyweight fleece layers, but you still need that bit of extra warmth to keep your body temperature regulated. The Merino 150 Baselayer Bottom is Smartwool's lightest merino layer. The perfect weight for when you step away from the fire and the first few snowfalls. The legging is built with merino fibers wrapped around a nylon core which provides the durability of nylon, while giving you that soft merino touch. Merino wool naturally resists odors and wick moisture, keeping the fabric fresh. The wide waistband hugs you comfortably for long days on the move, and the slim fit layers nicely under your shell pants.

  • Versatile lightweight baselayer for active women
  • Merino wool naturally repels unwanted odors and moisture
  • Nylon core increases durability for repeated wear
  • Wide waistband gives comfort and support during long days
  • Slim fit gives next-to-skin comfort and layers well
  • Reviews
  • Q & A

Fit & Features

Learn more about the fit, features, and benefits of Smartwool Merino 150 Women's Apparel. #gofarfeelgood


  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: small

These are the softest, comfiest pair of baselayer bottoms that I own. I was looking for something that was really light, a more form-fitting, and comfortable. These fit that bill!

The wide waistband sits comfortably right above my hips and the pants are the perfect fit -- not too baggy and not too tight like athletic leggins. They are super warm and flattering. I only wish there were other colors than black.

For sizing, I have pretty big hips in comparison to my waist, and the small fit perfectly! Any smaller would have been too tight on my thighs/butt and a medium would be annoyingly loose.

Thumbs up!

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: Xs

I have thicker legs so it was a bit tight but if you have thin legs and no butt xs is perfect! I only get this size so it actually stays on my waist! I love it and highly suggest it!