Nautica Men's Long Sleeve Crewneck Waffle Thermal Top.Keep cold weather at bay in this performance cotton-knit long-sleeve thermal. Its' designed with active-stretch fabric that keeps you warm and provides flexible movement.Whether You're Looking for Foundational Warmth, Lightweight Performance, or Both, This Thermal Crew-Neck Top Has You Fully Covered.Classic, Warm, and Always Comfortable Thermal Waffle Crew For Men.Waffle Knit Fabric Traps and Retains Body Heat Within The Waffle Pockets. The Fabric's Waffle Weaves Create Small Air Pockets That Hold Heat Next To The Body, and The Rib Cuffs At The Wrists Ensure Heat Stays Trapped As Much As Possible.Lightweight Shell, Moves and Stretches With The Body, and Allows Fabric to Breathe.The Cotton Rich Blend Creates Comfort While The Polyester Offers Stability and Utility To The Garment. Best Used As a Base or First Later in Cold To Very Cold Weather.Mens Waffle Thermal Shirt is Perfect For When You Need That Extra Layer in Cold Weather Activities like Skiing or Snowboarding. Also Ideal For Workwear, Hiking, or Camping Where Multiple Layers Might Be Needed.