The 12-ounce size is perfect for sparkling water, soft drinks, and good old-fashioned beer, all kept straight-from-the cooler cold while kicking back on the boat, at camp, golf course, or wherever the good times are going down.  Made with kitchen-grade stainless steel, so they're puncture-and rust-resistant.  Double-wall vacuum insulated to keep drinks cold until the last sip and a No Sweat™  Design keep your hands dry.  Dishwasher safe, fits in most cupholders.