The endura windchill arm warmers are the perfect warmers for them cold wintry conditions protecting your arms from the cold these endura arm warmers are a high quality durable under layer that will stay firmly in place with strong silicone grippers on your upper arm the combination of thermolite and extrant fabric ensures ultimate weather comfort with water and wind blocking the extrant and soft insulation thermolite keeps you both warm and dry the fleece lined thermolite on the bicep and