The long-sleeved turtleneck has a short zipper for ventilation, is made of circular knit fabric, and has no longitudinal seams. The back is longer to prevent gaps. The cuffs are knitted. Ullfrotté Original 400 grams can be used in colder conditions or when you do not intend to move much. It is then best to wear one of our thinner base layers underneath, such as Woolpower LITE or Ullfrotté 200, which are designed to be worn closest to the body. By wearing Woolpower directly on your skin, you get the most benefit from all the good properties of wool. 70% merino wool 28% polyamide 2% elastane