Bare Knuckles Basics Thermal Long Sleeve The Basics Thermal in Cream features a 17.5 oz two-by-one waffle-knit cotton thermal, which is given a softening wash before assembly. Flatlock stitching throughout, a thick set-in 12 oz ribbed collar, slim sleeves with elongated ribbed cuffs, and a merrow overlock stitched hem. Our good friend Lawrence Schlossman from the only podcast that matters called it "the best thermal I've ever owned."