Alpinestars Nucleon Flex Proi Full Back Protector Size:LG Compatible with all KRIEGA backpacks

Compatible with all KRIEGA backpacks besides the Hydro-2 hydration pack

Attaches to anything that's metal

Easy assembly and disassembly without tools

The Spark 2 Airs prioritize protection with carbon fiber knuckle protection and robust hard palm sliders

Durable fabric with pre-applied adhesive is perfect for replacing or finishing seat bottoms

Alpinestars Nucleon Flex Proi Full Back Protector Size:LG Compatible with all KRIEGA backpacksAlpinestars Nucleon Flex Proi Full Back Protector The extremely lightweight CE Level 2 and UKCA certified Nucleon Flex Proi Full Back Protector Insert features a highly ventilated hybrid of Nucleon Cell and Nucleon Flex protectors for the optimum balance of force dispersion and flexibility, with a soft touch 3D mesh liner for enhanced rider comfort. The back protector insert is a full length back protector, about 22% longer than regular back protector