The original Swix baselayer – trusted by active women everywhere. The RaceX Classic long sleeve top for women is Swix’s iconic women’s baselayer, built for movement, comfort and technical performance. Made from lightweight, breathable and fast-drying fabric, it keeps you warm and dry whether you’re training hard or enjoying a slower pace. The slim fit follows your body, while the stretch cuffs and round neckline ensure all-day comfort. With 70% REPREVE® recycled polyester from coastal plastic waste, it’s a smart, sustainable choice. This is true Swix super underwear – made for every season.