Product: Polar Bear Multi-Cover Details: This versatile cover can be used in the summer as a cooler cover by inserting an ice pillow, etc. In winter, it can be used as a hot water bottle cover. It's a great item. For children's sudden fevers. Place a cold pack in the back of the stroller to keep them cool. Also for cold protection, insert a hot hand warmer. Shipping: Fast, anonymous, and compact (compressed) Size: Approximately 45 x 30 cm, thickness 2.5 cm Opening 27 cm, with Velcro (measured flat by a layman) Quality: Surface: Pile: 100% cotton Ground yarn: 100% polyester Lining: 80% polyester, 20% cotton Filling: 100% polyester