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Thermal Base Layer A cold-weather essential for endurance athletes, the WYN Thermal Base Layer offers breathable, next-to-skin warmth to power you through brisk rides, early runs, and multi-sport adventures. With a soft fleece lining and moisture-wicking properties, it delivers insulation without the bulk.Designed for performance and comfort across a range of activities—cycling, running, hiking, skiing—this technical layer keeps your core warm in temperatures from 5–15°C (40–60°F), while maintaining stretch, breathability, and freedom of movement.
Thermal Base Layer A cold-weather essential for endurance athletes, the WYN Thermal Base Layer offers breathable, next-to-skin warmth to power you through brisk rides, early runs, and multi-sport adventures. With a soft fleece lining and moisture-wicking properties, it delivers insulation without the bulk.Designed for performance and comfort across a range of activities—cycling, running, hiking, skiing—this technical layer keeps your core warm in temperatures from 5–15°C (40–60°F), while maintaining stretch, breathability, and freedom of movement.