Lightweight and compact hydration pack from mont-bell, perfect for running and hiking. Compatible with chest support/trail water pack. - Brand: mont-bell - Color: Black/Yellow - Type: Hydration Pack - Features: Lightweight, compact design - Uses: Running, Hiking Material 30 denier Weight: 133g Capacity: 2.5L Size Back Length: 38.5cm Width: 19cm Depth: 6.5cm Model Number: 1133245 Price: 6000 yen Used a few times, but has been cleaned and stored at home. I think it's in good condition, but please understand that it is a used item before purchasing.