Woolpower Vest Protection 400The mid layer Protection 400 Vest is a thicker garment (400g) used to increase insulation between the Protection base layer and the wind and water resistant outer layer. Woolpower Vest Protection 400 is made from Woolpower’s Protection 400 fabric combining merino wool with aramide, beltron and elastane to provide Flame Resistance, Antistatic and Electric Arc protection.Woolpower Protection 400 has an extremely high ATPV value of 34.3 cal/cm².The Vest has a high collar, straight bottom hem and a full length zipper and is made of circular knit fabric with terry loops.PROTECTION 400:84% Merino Wool14% Aramide1% Beltron1% Elastane