The B904 features fabric and reflective tape that meets the requirements of EN ISO 20471. The innovative quick release anti-entanglement system is designed as a protection device when working in hazardous conditions. Features include a secure, weatherproof MP3/CD and mobile phone outlet as well as padded straps and back panel for wearer comfort.  Phone pocket Reflective tape for increased visibility Ergonomic quick release buckle Padded double straps for added support Padded back panel for wearer comfort Portwest quick release Hi-Visibility Backpack Reflective