TURTLENECK SHIRT with SHORT ZIPPER 200g/m2 Zip Turtleneck Shirt 200 Long-sleeved turtleneck shirt has a short zipper for ventilation, is made of circular knit fabric and has no lengthwise seams. The back is longer to prevent gaps. Cuffs are knitted in. 60% Merino Wool 25% Polyester 13% Polyamide 2% Elastane Weight M: 225g 200 g/m2 undergarments are designed to be worn directly against the skin as a moisture wicking base layer. The thinnest undergarments are ideal at temperatures ranging from -4 F to 50 F degrees depending on the activity level.