210D pyramid nylon outershell with PU coating 210D waterproof ripstop Nylon inner bag can removed with goods inside great when you get to destination Fluorescent yellow liner aids visibility when looking for kit Reinforced bottom & side panels maintain bag form when loaded up Rubberised lower panel is resistant to mud & water spray Rail straps are coated to resist excessive swaying Adjustable bungee on top panel will hold excess clothing Hypalon rear panel with slits for LED light or extra straps Inner bag is fully waterproof when rolled down Reflective details to side & rear Small 478 grams