Costume Base J Vest RedCostume Base J Vest Red Cute non woven vest! This is the best of the popular costume base series. It's already sewn, so you can easily make costumes. Sized for toddlers to lower elementary school students. What is a costume base? It is a pre sewn costume base that can significantly reduce production time. The colorful base allows you to create a wide variety of costumes. You don't need a sewing machine, you can make costumes just by cutting and