Scent-Lok® ClimaFlex™From 0° to 60° in one season. Scent-Lok's revolutionary scent-absorption technology, known as ClimaFlex™, fuses granulated carbon between two specially treated layers of fabric to enhance flexibility and significantly increases its breathability and moisture-wicking performance. This helps keep you cool in the early season and warm later on -- all without sacrificing the most effective scent-elimination performance on the market today.Scent-Lok® Savanna™ The ultimate in lightweight, super-comfortable scent elimination. Revolutionary single-layer technology combines the industry's most effective scent absorption with high-performance breathability to keep you cool and undetected even in the warmest hunting conditions! Built on a single layer of ClimaFlex™ fabric, Scent-Lok® Savanna™ shirts, jackets, pants, and accessories are the ideal choice for those sweltering first few weeks of bow season, or whenever hot, humid conditions rule the day.Made from ultra-cool single-layer Savanna™ ClimaFlex™ fabric; adjustable headband with full sun visor. One size fits most. Imported.