* Integrated back protector : backpack also serves as personal safety equipment (PSE)* Body-hugging fit* Completely ventilated carrying system with breathable hip belt* Back protector is removable and replaceable* 2-Step-Zip System* Attachment system for: helmet (XC, full face), protection gear (stowable)* Tool compartment (separate, wide swing-open)* Rain cover (integrated)* Accommodates hydration systems up to 3L (not included)* Volume: S-18L, M/L-20L, XL- 22L