*Sizing Note* Carhartt are more generously sized you may need to consider dropping down a size from your traditional workwear clothing. Keep your feet warm with the Carhartt thermal plaid sherpa crew socks. These lightweight socks pull up till the mid-length and have reinforced toes and heels to protect you from blisters. Made from a blend of acrylic polyester and elastane the socks insulate and retain heat in your feet. They are completely cushioned for a comfortable fit., 69% Acrylic/30% Polyester/1% Elastane. Inner Lining: 100% Polyester., Sherpa lined construction. Mid-High cold weather sock., Reinforced heel and toe. Arch SupPort for Stability., Full cushioned.,