The ultimate stainless steel bottle for on the go versatility. The lid has a dual function that has both a flip top straw and screw cap so you can choose how you want to drink from the bottle! The bottles features a top handle for easy carrying. Double wall Woolysi 1L Stainless Steel Function Lid Bottle insulated stainless steel keeps beverages hot for up to 5 hours or cold for up to 15 hours. A powder coat finish creates a highly durable exterior. Capacity 1000ml. BPA free.