Ocaso takes a traditional shape and uses knitterly techniques to construct it in a way that only knitting can. The garment starts off in a similar fashion to a pi-shawl, but is transformed into a boxy shape though the use of short rows. Folded hems keep the lines clean. Worked in a smooth cotton yarn, the cardigan is warm enough to ward off summer breezes, but cool enough for warmer days too.

The sweater is worked in one piece from the neck down. It begins with a circular yoke that is transformed into a square using short rows. The front and back body are joined in the round and knit downwards, as are the sleeves, all of which are finished with a folded hem. A wide folded band is picked up and knit along the front opening and neckline.