Skip to top navigationSkip to shopping bagSkip to main contentSkip to quick filtersSkip to product filtersSkip to footer links
Open and use a Navyist Rewards Credit Card & get an extra 30% off* your first purchase. Apply Now.Open and use a Navyist Rewards Credit Card & get an extra 30% off* your first purchase. Apply Now.
on logo lighton logo dark

Thin Swimsuit

135 items
Size Variant
135 items
Convertible Bikini Swim Top
Convertible Bikini Swim Top
$$26.99
$$9.97 - $$13.49
Underwire Bikini Swim Top
Underwire Bikini Swim Top
$$39.99
$$9.97 - $$19.97
Underwire Bikini Swim Top
Underwire Bikini Swim Top
$$29.99
$$14.47 - $$14.97
Underwire Bikini Swim Top
Underwire Bikini Swim Top
$$29.99
$$7.96 - $$7.97
High-Waisted Bikini Swim Bottoms
High-Waisted Bikini Swim Bottoms
$$19.99
$$4.96 - $$5.47
Mid-Rise Bikini Swim Bottoms
Mid-Rise Bikini Swim Bottoms
$$19.99
$$3.97 - $$9.97
High-Waisted Swim Skirt
High-Waisted Swim Skirt
$$34.99
$$12.97 - $$20.99
Sleeveless Swim Dress
Sleeveless Swim Dress
$$59.99
$$21.47 - $$28.00
One-Shoulder Bikini Swim Top
One-Shoulder Bikini Swim Top
$$22.99 - $$24.99
$$11.47 - $$14.99
String Bikini 2-Piece Swim Set
String Bikini 2-Piece Swim Set
$$49.99
$$17.47 - $$24.97

THIN SWIMSUITS

Get ready to hit the beach or pool in style with our collection of thin swimsuits for women and girls. At Old Navy, we understand that finding the perfect swimsuit can be a challenge, but we've got you covered. Our thin swimsuits are designed to make you feel confident and comfortable, no matter your body type or size.

From string bikini swim tops to high-waisted bikini swim bottoms, our thin swimsuits offer a variety of styles to suit your taste. Whether you prefer a classic and minimalistic look or something more playful and trendy, we have the perfect swimsuit for you. Our thin swimsuits are made with high-quality materials that provide a comfortable and flattering fit. With features like ruffles, cutouts, and metallic shine, our swimsuits are sure to turn heads wherever you go. Shop our collection of thin swimsuits today and get ready to make a splash!