Delta Denim pants Light IndigoDESCRIPTION PHENOMENON 2022 23 Autumn Winter Collection. Delta denim pants re produced from a 2010 piece. Craftsmen hand sew the triangle (delta) patterned fabric from the legs to the upper thighs, and wash the fabric with the edges left uncut to create a distressed denim look and feel. The original studded head top button is included. They have a slim silhouette with a gentle taper from the knees down.