Patagonia Men's Capilene Midweight Bottoms Polartec® Power Grid® fabric has a smooth face for easy layering; spandex for stretch and ease of movement, with Polygiene® permanent odor control Fair Trade Certified™ sewn Fabric's brushed-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance Elastic waistband is brushed for next-to-skin softness Gusseted crotch for comfort and unimpeded mobility Functional fly Flatlock seams to minimize chafing 193 g (6.8 oz) Fabric is certified as bluesign® approved. Imported.