The first nursing bras were likely simple adaptations of regular bras, with the addition of a flap or opening in the cup to allow for easy breastfeeding. Check out this catalog listing for a nursing corset!
Hot Milk Lingerie Heroine Nursing Bralette for Canadian
The Best Gift for a New Mom: Momzelle + $50 Momzelle GC GIVEAWAY
Momzelle Sophie Pocket Nursing Top
Momzelle Hoodie Longsleeve Nursing Tee
Maternity/Baby Care
Glamourmom Nursing Bra Full Bust Long Top - Healthy Horizons
Maternity and Nursing Wear Bumble Tree Baby and Children's
Seamless Maternity & Nursing Bra – Momzelle
Momzelle Nursing Clothes and Bras for Canadian Moms
Momzelle Maternity Seamless Nursing Bra - - Assorted Colors
Who invented the nursing bra? – Momzelle