New Solid Pants Matt BlackDESCRIPTION RIPVANWINKLE 2021 22 Autumn Winter Collection. These new solid pants are made of a new material, Spanish katsuragi stretch. The warp uses sweet twist yarn made by Silospan fine spinning from Andalusia, Spain, and the weft uses stretchable yarn for a comfortable finish. This is a key item for this season that you can enjoy the supple and exotic texture of the sweet twisted fine fibers.