Stay warm and stylish with the Callaway Women's Opti-Therm Base Layer Set. This set includes a long-sleeve top and leggings, both made with Callaway's Opti-Therm fabric technology. The fabric provides a layer of thermal comfort to keep you warm in colder conditions. The top features a mock neck and quarter-zip design for adjustable coverage and ventilation, while the leggings have a wide waistband for a secure fit. The stretchy and moisture-wicking fabric allows for unrestricted movement and keeps you dry throughout your round. Whether you're teeing off in the early morning or playing in cooler weather, this base layer set is a must-have for women golfers.