Durable nylon/spandex gear with water-repellant thermal fleece inner can be worn on their own or as a thermal layer. Excellent for use under Zhiks Titanium top to keep you feeling toasty warm. When worn as a thermal base layer they trap warm air and repel water, while the Titanium top outer acts as a flexible weather shield with heat-reflective properties-meaning youll always be comfortable. Imported.