Full zip vest has reinforced collar and has straight bottom hem. The collar has the Woolpower logo knitted in (all colors except green) as well as an embroidered Woolpower logo on the chest. Ullfrotté Original 400 gram can be used in colder conditions or when you dont intend to move around much. Then its best to wear one of our thinner base layers underneath, such as Woolpower LITE or Ullfrotté 200, that are designed to be worn closest to the body. By wearing Woolpower directly against your skin you gain the most benefit from all the good properties that wool has. 70% Merino wool 28% Polyamide 2% Elastane