S and M sizes are also sold separately. This is a great value set, so no price reduction is possible. ■ S size: Drawstring type, holds 6 x 500ml plastic bottles ■ M size: Drop type, folds to about 4cm thick, with a capacity of about 16L ◎ S size: When in use...30 x 26cm, when folded...diameter 4 x 6cm Capacity: Approximately 7.5L Weight capacity: 3kg Material: Polyester Washable ◎ M size: When in use...28 x 56cm, when folded...8 x 10 x 4cm Weight capacity: 5kg Material: Polyester Washable