Material - container: 100% 18/8 stainless steel Material - lid: 100% Polypropylene Material – sleeve: 100% Silicone Stainless steel water bottle with thermal function and soft, non-slip and scratch-resistant silicone cover Anti-leak steel lid with carabiner for attaching to stroller or bag Keeps liquids cold for up to 24 hours Keeps liquids hot for up to 12 hours Unbreakable Leak-free Perfect for little hands Capacity: 500ml. Hand wash – using the dishwasher may damage the vacuum layer Dimensions: Diameter (cm) 6.5, Height (cm) 10.5, Capacity (ml) 500