Stay wonderfully warm on cold days with this stylish hot water bottle featuring a soft wool-effect cover. The cover is made from 100% polyester, feels comfortable, and protects against direct contact with the hot rubber bottle. The hot water bottle itself is made from natural rubber and meets the BS 1970:2012 safety standard. • Soft Wool-Effect Cover – Comfortable and protective. • Generous Capacity – Fill up to 2/3 for optimal warmth. • Reusable & Durable – Eco-friendly heat source.