The 16oz Guzzle Buddy® wine glass is made from borosilicate glass and uses a silicone sleeve that, when gently screwed into the bottle, provides a perfect seal. No spills, and no mess.
An added benefit of the funnel design is that, as the wine flows freely through the stem and into the glass, it gently aerates it releasing the aromas and flavors of the wine. It allows you to aerate, pour and drink in one simple step!