2XL - Chestnut Hill adults Pima cotton long-sleeve mock neck. Smooth 100% pima cotton interlock of 36 singles yarn. Now you can have the legendary softness of premium Pima cotton at a fraction of the price of fashion brands. This mock is made from an incredibly fine interlock knit of 36 singles yarn. Upscale Impressions: Elevate your look with premium fabrics, flattering fit.