I crocheted this using MADE in JAPAN yarn purchased from Seria, which is 95% cotton and 5% polyester, perfect for spring and summer. It has a bit of sparkly lame thread. It does not have thermal insulation. I took pictures with a 0.48L water bottle and a 630ml plastic bottle inside. The dimensions when laid flat are: Height x Width = approximately 19 x 10 cm Diameter of the bottom circle: approximately 7 cm Handle length: approximately 20 cm Thank you for looking.