Blauer turtlenecks are made using an intimate blend of 90% cotton and 10% lycra. The fabric is no melt, no drip when exposed to heat or flames and has four ways stretch so you can choose whether you want a loose or a compression fit. The 1 x 1 rib knit collars and cuffs are also blended cotton and lycra and will easily stretch to fit the largest heads. We also reinforce the seams and make them extra-long with a slight 'scoop' in back, so they always stay tucked.