* 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 and secure fixation* 100% waterproof* Material: 140/500D SHANTUNG, WATERPROOF* Volume: 2L* Size: 10 x 27 x 12cm (3.9 x 10.6 x 4.7)* Weight: 198g (0.4lbs)