This item will be included as a free gift for those who purchase over 400 yen. You can choose one for every 400 yen spent. If you would like one, please let me know in the comments section. *Purchases of this item alone are also welcome. This is a shoulder strap cover for water bottles. It uses one layer of quilt batting, so it's not very thick, but it's useful as a spare or for washing. The sample strap uses a 2.5cm wide bag strap, and the opening is almost the perfect size. If the strap is difficult to insert, please insert it little by little. Since it is made using leftover fabric, there may be slight differences in length. Please check the following. Length: Approximately 21cm This is handmade, so we appreciate your understanding.