Change can be a good thing. SmartWool® improved the fit on their Merino base layer bottoms with new side seams and a curved seam in the back to help provide a slimming effect while reducing sag and excess fabric. The Classic Thermal Merino Base Layer Bottoms are designed to keep you doing what you love while staying comfortable—helping keep your body temperature-regulated and wrapping you in unbelievable Merino wool softness. Merino Wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance Merino-covered elastic waistband Flatlock seam construction designed to minimize chafing Fit updated to improve functionality while enhancing aesthetics for a range of body shapes Slim Fit: intended to follow the contours of the body Knit in Vietnam Product Features: Fabric:100% Merino Wool Inseam:30.5" (77.5 cm) (Size: Medium) Weight:7.34 oz. (208 g) SmartWool Women's Classic Thermal Merino Base Layer Bottom