- This is a men's Christmas knit. It's made from warm materials. Christmas look only your grandma could beat. The model is wearing size L and is 187 cm tall. JACK & JONES ORIGINALS You love your grandma, don't you? Well, then free her from knitting the same Christmas sweater every year and repay her with a hug. This knit will do as a viable substitute. It wears best in front of the fireplace, and is made for furiously unwrapping presents.