Snow Bird SkisokkenSNOW BIRD SKI SOCK In collaboration with a fixed group of customers we have accelerated the market launch of the Snow Bird. A really cool Grutto Ski sock for lots of fun in the snow. Although the Grutto is not really a snow lover ; ) There are still some details missing, such as the Left Right indication and the size. But that does not make the sock less functional. As mentioned, we have accelerated production so that they can still go into the snow.