While it may seem counter-intuitive to add layers on a hot ride, the Gore Bike Wear Women's Base Layer Singlet is designed to pull moisture away from your skin on hot days, so it actually keeps you cooler than a jersey alone. It also prevents chafing from a wet jersey or from bib straps, so you're comfortable in the saddle for a longer time. The stretchy elastane and polypropylene blend fits like a second skin without limiting your range of motion. Flatlock seams hold everything together, again, to eliminate chafing and hot spots, and the drop tail design keeps you covered, even while you're in the hunched pedal position.