Exterior: Stand-up collar, concealed snap button closure under facing 2 patch chest pockets with flaps with hidden press studs, 2 patch side pockets with flaps with hidden press studs, 2 loops for gas detectors, round sleeves, sleeve narrowing by means of a button. press studs, flame retardant reflective tape (50 mm). Inside: 1 inner pocket, identification label. Material: Sio-Safe Essential Eco: 50% cotton + 30% Tencel = 19% recycled polyester + 1% AST. +- 320 g/m. Complies with: EN 61482-2 ELIM 9.7 cal/cm² - ATPV 11 cal/cm², EN ISO 11612 A1 A2 B1 C1 E3 F1, EN ISO 11611 Class 1 A1 A2, EN 1149-5, EN 13034 (Type PB 6), EN 17353, EN ISO 13688. Available colours: navy-fluo yellow Available sizes: 44 - 64