EVOC's packing competence for useful extra storage on your bike, and better yet, it doesn't affect your riding, even when it gets rugged! The SEAT PACK BOA M is an on-bike storage option that offers all the familiar top quality and functionality that EVOC is known for. Adjustable capacity due to roll-top closure Dropper post compatible Soft TPE seat post protection Flexible main compartment closure that adjust to bag size Boa Fit System for easy