Lightweight Base Layer Pants PRODUCT DETAILS High-IQ™ Advanced Evaporation Technology – fast wicking hollow-core fibers transport moisture to the outer surface to dry quickly Flat-lock stitch seam construction Multi-direction stretch fabric allows for un-restricted range of motion Open fabric structure offers lightweight warmth and all day comfort UPF 40 sun protection Polygiene® odor Control Technology Ergonomic panels are form fitting (non-compression)