KUTSUWA School Supplies Tsuga Cool Water Bottle Cover Black ST526BK

[Specifications] Adjustable size to fit your water bottle! Water bottle cover with shoulder strap. [Feature 1] Compatible with water bottles from 400ml to 1L [Feature 2] The height can be adjusted in two stages (140mm when the top is folded, 200mm when extended). [Feature 3] The diameter can be adjusted by rolling it up (compatible with water bottles with a diameter of approximately 60-90mm) [Feature 4] Comes with a shoulder strap