Chantelle C Ideal Plunge T-Shirt Underwire Bra (1951). The Chantelle C Ideal Plunge T-Shirt Underwire Bra 1951 features a new contour cup padding that combines the breathability of spacer foam with the support and adaptable fit of memory foam. This revolutionary bra provides no-show coverage and lift, and also has a minimizing effect! Fully adjustable straps adjust in back with coated metal hardware. New lower, curved front is wonderful for full figure and full-busted women who still want a bra that won't show under lower necklines. Chantelle's C Ideal Plunge T-Shirt UnderwireBra is made of nylon/elastane with 100% polyester fused cup lining.