EVOC Trail Pro 16 Backpack Denim BF PA Compatible with SRAM 2 piece hydraulic BF Giant Compatible with SRAM 2 piece hydraulic disc brake calipers That’s combined with the all condition confidence of hydraulic disc brakes and the quick and intuitive shifting cyclists expect from SHIMANO 105 It’s ideal for day tours or extensive trail riding FeaturesLITESHIELD PLUS BACK PROTECTOR > (Level 2) Extremely lightweight only 1000 g (Size S M) 1100 g (Size L XL)EXTRA WIDE HIP WINGS and AIRO FLEX > hip belt provide optimum fit withBODDY HUGGING >The BRACE LINK > elements enable the shoulder straps to be adjusted to the individual shoulder widthThe TOOL COMPARTMENT can be opened and closed with one hand