Which size of mcm drawstring bag is good?

1, ExtraMini: The smallest size in the drawstring bag series is 15x20x 10cm, which is suitable for holding several items, such as wallets, mobile phones and keys.

2.Mini: The size is 2 1x26x 13cm, which is slightly larger than the ExtraMini, and can accommodate more items, such as books, umbrellas, water bottles, etc.