Long trousers made of flame-retardant fabric. Adjustable elasticated waistband at the back. Two front pockets. Back pocket with flap and Velcro closure. Side pockets with flap and Velcro closure. 98% cotton / 2% carbon, twill, 360 g/m². Heat and flame protection. Electrostatic properties. Protection against the thermal risks of an electric arc. Protection during welding and related processes. Detachable label. CE conformity according to the following standards: UNE EN ISO 13688:2013/A1:2021, UNE EN ISO 11611:2018: CLASS 2, UNE EN ISO 11612:2018: A1, B1, C1, E3, F1. ONE ·EN 1149 ·5:2008 ONE ·EN 61482 ·1 ·2:2015: APC =1