Sizing is specific to Chantelle Lingerie. Measure for a nursing bra no sooner than 3 weeks before your due date to ensure accurate sizing. DETAILS & CARE Lightweight and easy to maneuver, this full-fit nursing bra gets a smooth finish from spacer foam and is supported by lace side slings when unclasped. 4-hook closure for sizes F–G Leotard back for a smooth, bulge-free fit 92% polyester, 8% elastane Hand wash cold, dry flat