This womens-specific cycling specific baselayer is designed to keep you warm and comfortable on cool to cold days. Transfer fabric rapidly moves moisture away from your skin to outer layers, while activated charcoal in the front panel fabric further speeds dry time and moisture transport. Patent pending Speed Sleeve anatomic construction hugs the contours of your shoulders, providing a second-skin fit when in the bent-over riding positing. Wear this baselayer under a long sleeve jersey during cooler months, and then add it to your cold weather layering system during chillier months.