Berroco 434 Isola is a must-have collection of 6 warm-weather designs. The collection features a short sleeve cardigan, several knit and crocheted pullovers, and a lacey wrap with fringe. Isola by Berroco is a fantastic gradient yarn! This yarn is the easy choice for summer sweaters and tees. The colors in Isola transition beautifully, making every project a little fun and classy.