Black Basic Swim Cup Inserts Size 18/38C

These wafer-thin smooth laminate foam cups are designed to blend cleanly into swimwear for a smooth, supportive look without extra bulk. They’re a practical choice for swim tops and can also be used in sportswear, activewear, and evening wear when you want light shaping and a neat finish. The black color makes them easy to coordinate with darker garments, and the sun- and chlorine-resistant construction is ideal for poolside sewing projects.

Features:

• Wafer thin smooth laminate foam cups
• Sun and chlorine resistant
• Quantity of 1 equals one pair
• Size 18/38C measures 6.75" wide by 6" high
• Suggested uses: swimwear, sportswear, activewear, evening wear
• Care: machine wash cold, tumble dry low

Use these inserts when you want a simple, comfortable cup that helps your handmade garments look polished and feel secure. They’re especially useful for swim tops, supportive activewear, and other fitted garments where a smooth interior finish matters.