The Alna Winter Pant 2.0 Class 1 has a great fit, innovative pocket solutions and heat transfer reflectives to make sure you stay comfortable and visible while working through the cold dark days of winter. :EN ISO 20471:2013 Class 1 EN 343:2019 4,1 EN 342:2017 0,324 m²K/W(B) (2,09 clo) Air permeability Class 3 Fully taped construction Detachable and elastic suspenders Broad center back belt loop for extra strength and stability Hand pockets Plastic covered metal buttons Thigh pocket with fastener closure ID card loop Ruler pocket Knee high boot zipper with storm flap & fastener closure Articulated knees for optimal mobility Boot gaiters with gripper Possibility to increase leg length by 5cm