actually it is the 30. i have the 25 and ive just compared it to mine, and if you look at the side panel of the bag, you will see there are more shapes going down diagonally on hers than on the 25, the two middle lines count 6 each going down diagonally whereas hers has 8 which means a larger peice of canvas was used making it the nxt size up to the 25 being the 30