Inside the bra there's a 2 wide band of fabric along the bottom of each cup (must be that magic inset) see picture. Stein & Co - Hey Viv ! Fabric is
Bra 32b
Vintage 1950s Stein & Co White 32B Cotton Rayon Bra Perma-Lift with Magic Inset
1950s Cotton Bra
Vintage 1950s white rayon - Gem
1950s Bra
1965 PERMA-LIFT MAGIC Oval Pantie Girdle & Bra photo nude color vintage print Ad $8.29 - PicClick
Fabulous New/old Stock Vintage 50's TEENFORM Circle Stitch starter / Training Bullet Bra 30AA in the Original Box
Vintage 1970's Bra
Vintage bra 1950s white - Gem
perma lift, 公認海外通販サイト
1950s Lingerie Bra
Vintage 38 B Bra
SALE Vintage '70s Soviet Circle Stitch Cotton Bra Top S