With Alna 4X, we are bringing lightweight and durable 4-way stretch materials into our medium price point offering. Coming with 2 cargo pockets and an opening for the ruler, this pant is perfect for those looking for a comfortable, yet simple class 1 high-vis pant. :EN ISO 20471:2013: 1 Amann threads Ykk® Zipper 4-way stretch fabric Broad center back belt loop for extra stability and strength Gusset in crotch for freedom of movement Thigh pocket with fastener closure and several compartments Opening for ruler Plastic covered metal buttons Articulated knees for optimal mobility Possibility to increase leg length by 5cm Reinforcement fabric on bottom hem ID card loop bluesign® product