:EN ISO 20471:2013: 1 Ykk® Zipper 3M materials Amann threads Stretch Cordura® reinforcement fabric 4-way stretch fabric BRZ ventilation opening at side seam Laser cut ventilation holes at back Adjustable bottom hem Broad center back belt loop for extra stability and strength Gusset in crotch for freedom of movement Bit pocket with Ykk® zipper Built in mobile pocket on hanging pocket Zip-off Stretch Cordura® hanging pockets with double lined bottom and webbing for durability Thigh pocket with Ykk® zipper, fastener closure and built in mobile pocket Ruler pocket Plastic covered metal buttons Articulated knees for optimal mobility Stretch Cordura® fabric reinforcement on knees Knee Pad pockets accessible from the outside Stretch Cordura® fabric reinforcement on bottom hem ID card loop