Norlan Whisky 2-pack, Clear. The Whisky glass has two separate walles: one inner wall and one for the outer wall. When both molds are finished, the inner wall is inserted into the outer one which creates the perfect whiskey glass. The reason for the shape of the glass is the inner walls that shut out the aroma, when the aroma rises and then flares out again so as not to hit the nose. To get the optimal experience, spin the glass quickly.