From the product description, check product page for current description, price and availability:

• Vacuum-insulated stainless steel keeps your beer cold—within a few degrees of the temp when you poured it
• Double-walled design prevents your Hands from warming your beer and keeps your glass from sweating
• Lightweight, the glass is just half the Weight of a traditional pint glass, plus its holds 16 oz of beer (with room for foam!)
• Super thin mm rim is feels great and isn’t bulky, so you can taste the beer, not the glass
• Elegant design is beautiful not bulky, a classy look inside or out