Each mug in this set of 2 Keep Kool Double Walled Stainless Steel Mugs has an insulating layer of air between the walls to keep your drinks cold longer than regular mugs No sweating and no need for coasters even with the coldest beverage These are great for hot drinks too Each Mug has a sip lid to prevent spilling and splasing so you can take these on the go Easy to clean and dishwasher safe Features . Keep Kool Stainless Steel Mugs with Lids. Set of 2 Specifications . Capacity 16 oz. Weight 1 65 lbs