Description of SmartWool Midweight Bottoms Smartwool's Base layers are like giving evolution a helping hand. A high performance base layer protects you from the elements while cradling your body in the finest natural SmartWool Features: Covered elastic waistband Traditional fly design Flatlock seam construction eliminates chaffing 100% SmartWool interlock knit Fabric weight: 235 gm/m2 = 7 oz/yd2 Garment weight: 222 gm = 7.8 oz