This item will be included as a free gift for those who purchase over 400 yen, if desired. You can choose one for every 400 yen spent, so please let me know in the comments section if you'd like one. ※ 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 a perfect fit. If the strap is difficult to insert, please push it in little by little. Since it is made using fabric scraps, there may be slight differences in length. Please check the following. Length: Approximately 21cm This is handmade, so we appreciate your understanding.