- This is a men's crew neck knit - It's made from a comfortable cotton blend - It's got roll edges adding to the casual look. The model is wearing a size L and is 187 cm tall . JACK & JONES ORIGINALS When you buy cotton garments from JACK & JONES, you support responsible cotton production through the Better Cotton Initiative. We aim to source 100% of our cotton from more sustainable sources by 2020, and we're almost already there.