Don't worry if the sun forgets to shine, the Pearl Izumi Sugar Thermal Bike Tights add a hint of insulation to keep you comfortable on the ride. . SELECT Thermal fabric sets the benchmark for moisture transfer and warmth. 6-panel anatomic design for comfortable fit and ergonomic shape. 7 in. ankle zipper makes for easy entry. 29 in. inseam (size medium). Reflective elements for low-light visibility.