Rothco Midweight Thermal Knit Top 3XL 3XL. The top is designed to be layered while wearing in extreme cold weather since the fibers are insulating while also keeping you dry. For your comfort the thermal knit top has elastic knit cuffs that mate with a woven collar piece to prevent chafing. For your comfort a woven label is included on the inner back neck of the thermal knit top for added heat retention. Since the material is soft you will want to keep your Rothco thermals on hand at all times since they are so soft and easy to wear. Specifications for Rothco Midweight Thermal Knit Top: Manufacturer: Rothco Sleeve Length: Long Age Group: Adults Apparel Fit: Regular Gender: Male Color: Black Shirt Style: Thermal Shirt Fabric/Material: 60percent Cotton 40percent Polyester Knit Condition: New Neckline: Crew Seasonal/Temperature Use: Cold Weather Features of Rothco Midweight Thermal Knit Top Material: Polyester Material Specs: 60percent Cotton 40percent Polyester Knit Package Contents: Rothco Midweight Thermal Knit Top Rothco Midweight Thermal Knit Top 3XL 2829-3XL