SKU 9406264 Keep your cool when you sport the athletic and lightweight Craft Sports Core Warm Base Layer Set. A slim fit base layer set with great airflow that can be worn under any outfit. Warm top and bottom made of soft jersey with brushed inside for optimal warmth and comfort. Crew neck. Long sleeves. Full length tights with a gusseted crotch. 100% polyester. Machine washable. Imported. View Zappos.com Glossary of Terms Craft Core Warm Base Layer Set