The Men?s Classic All-Season Merino Bottoms from Smartwool have been updated to improve their functionality and fit. These slim fit bottoms are designed to follow the contours of the body and with a flatlock seam construction to reduce chafing and rubbing, they give all-day comfort. The lightweight Merino fabric is perfect for thermoregulation and breathes well, as well as being naturally odour resistant. Just the peace of mind you need when your outdoor adventures become more intense. With a fully functioning fly and merino-lined elastic waistband, these base layer bottoms are an essential addition to your layering system, for any season. Smartwool Men's Classic All-Season Merino Base Layer Bottom - Grey | George Fisher