Patagonia’s Capilene Theramal Weight Bottoms are warm, breathable polyester baselayers with minimal bulk. Polartec Power Grid fabric with Polygiene permanent odor control. Fair Trade Certified sewn. Patagonia says:A breathable, lofted baselayer to keep you warm in cold conditions. Polartec Power Grid fabric with HeiQ Pure odor control. Fair Trade Certified sewn.Our VerdictPatagonia’s Capilene Thermal Weight Bottoms are heavyweight thermal long-johns with a polyester blend for superior warmth in cold conditions. They have offset, flat-locked seams so they are comfortable to wear during high intensity activities under your normal pants in cold conditions or on their own when you’re at camp.This warm, breathable polyester baselayer has a smooth face for easy layering, a high loft brushed-grid interior pattern for soft next-to-skin feel and offers superior warmth for cold conditions. The wide waist band is really comfortable, especially when you’ve had them on for quite a while. The functional fly is a great benefit compared to many other baselayer bottoms.- Reviewed by Ultralight Outdoor GearFeaturesFabrics open-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performanceStretch and ease of movementElastic waistband is brushed for next-to-skin softnessGusseted crotch for comfort and unimpeded mobilityFunctional flyFlatlock seams to minimize chafing; Fair Trade Certified sewnSlim fitSpecificationsXSmall (UK 08) weighs: 141gSmall (UK 10) weighs: 151gMedium (UK 12) weighs: 160gLarge (UK 14) weighs:: 168gMaterial & Construction3.8-oz (129-g) Polartec Power Grid 92% recycled polyester/8% spandex with HeiQ Pure odor control. Fabric is certified as bluesign approved. Fair Trade Certified sewnHelp & advice:The Ultimate Guide to Lightweight BaselayersRecycled Content in Outdoor Gear

Patagonia’s Capilene Theramal Weight Bottoms are warm, breathable polyester baselayers with minimal bulk. Polartec Power Grid fabric with Polygiene permanent odor control. Fair Trade Certified sewn. Patagonia says:&nbsp