Jumper Set. Make it without the shoulder ruffles if you want a plain sports sun-back dress. Use the ruffles on your dress if you prefer the "pinafore" type to wear about the house. Add the bolero to your sun-back frock and you have a neat comfortable street frock. Use of of the new gingham "cobweb" plaids - bright Mexican stripes, floral prints or cotton twills and shirting materials for a summer outfit. The jumper-bolero can be done in soft, dark colored wool jerseys or lightweight woolens for cooler weather wear. A bright blouse or sweater worn under the jumper will make it a most attractive school frock.