Black Basic Swim Cup Inserts Size 4/30B

These wafer-thin smooth laminate foam swim cup inserts are designed to blend neatly into your swimwear for a clean, comfortable finish. They’re a great choice when you want light shaping and coverage for swimsuits, sportswear, activewear, or even evening wear. The smooth black finish helps them disappear inside garments, while the sun- and chlorine-resistant construction makes them especially useful for poolside sewing projects.

Use them in bras, swim tops, and supportive activewear styles when you want a simple insert that stays discreet under fabric. Quantity of 1 equals one pair, making it easy to plan your project needs.

• Wafer-thin smooth laminate foam cups
• Black color for discreet blending inside garments
• Sun resistant
• Chlorine resistant
• Quantity of 1 equals one pair
• Size 4/30B measures 4 1/2" wide by 4" high
• Machine wash cold, tumble dry low

Ideal for swimwear, sportswear, activewear, and evening wear projects where a smooth, lightweight cup insert is needed.