Hot Chillys Micro Elite Chamois Ankle Tights are engineered with soft microfiber MTF Moisture Transfer Fibers yarns combined with spandex for a body fit that stretches and moves with you. Gusseted to reduce seam bulk and allow for ease of movement making this base layer bottom comfortable and non binding. Featuring 4 way stretch, the Micro Elite Chamois Ankle Tight provides full range of motion to improve performance and comfort. Rated 8 on the warmth factor thermometer, this ankle tight is designed for excellent moisture management perfect for performing all day long. Features: Covered elastic waistband for added comfort Gusset eases movement and reduces seam bulk Intimate blend of enhanced polyester and spandex fibers Moisture Transfer Fibers to move moisture away from the skin 4 way stretch for unlimited movement Smooth face for easy layering Soft to the touch Comfortable, non binding Undeniably warm Body fit design for next to skin performance fit Active to aggressive lifestyle styling UPF 30 protection Technology: MTF Moisture Transfer Fibers: Hot ChillysR exclusive MTF technology moves moisture away from your body, keeping you warm, dry and comfortable. Bio SilverR: anti microbial treatment uses state of the art technology with intimately blended yarns to prohibit odor causing bacteria. This fabric incorporates non abrasive, soft feeling yarns with permanent, silver based properties to help trap and eliminate body odor.