Contemporary Perma-Form® Bra. Back Hook. A lightweight form of polyurethane foam sewn permanently into your favourite style! Lightly fiberfilled, smooth cups for great shaping and additional support. Cups are satin polyester tricot; elastic sections are nylon/spandex. Just a touch of pretty lace. Less than half the weight of silicone. More comfortable on those hot, humid days. If you have arthritis or if you have trouble fitting the form into the pocket. Hand Wash. Line Dry. All Perma-Form® Bras are custom made. Please allow 15 days extra for delivery. 6-month limited replacement warranty against manufacturing defects of the Breast Form. Order your Regular Bra Size. Indicate Right/Left/Double Surgery. Also available in Front Hook - see Style 331. Made in USA or imported.