Thermolite174ideal for cold weather cycling thermolite174 uses hollow core fibre technology to create an insulating layer of warm air the result is a lightweight warm fabric with superior moisture vapour transport properties that doesnt get heavy even when wet the thermolite quality developed by endura has the added benefit of a high performance repel teflon174 fabric protector finish from dupont movistar team replica kit pro performance no pale imitation as movistar team39