Women's Plus Size High Waist Tankini Swimsuit

Women's Plus Size High Waist Tankini Swimsuit

Built on a genuinely separate plus-size pattern rather than a straight-size block scaled up, this set pairs a supportive tankini top with a high-waist bottom that sits above the navel for smoothing coverage through the midsection without the tight, rolling-down feel of an elastic waistband that wasn't designed at this size to begin with.

The top has reinforced support at the shoulder seams and underbust, which is where plus-size swim tops most often stretch out first, and the fabric has enough structure to hold its shape rather than clinging in a way that misrepresents the actual fit. This is one of our most-repurchased plus-size styles for exactly that reason.

Sizing follows our standard tankini block, so if you already own another Happari tankini, order the same size here. The top runs true through the shoulder and bust, and the bottom sits at the rise noted in the product description rather than shifting from style to style. If you're between two sizes, most customers do better sizing up on the bottom than on the top, since a snug bottom is the more common fit complaint. After swimming, rinse in cool water to clear out chlorine or salt, then lay flat or hang to air dry — skip the dryer, since heat is what breaks down swim fabric's stretch recovery fastest, and avoid leaving the suit balled up wet in a bag for more than an hour or two.

Every Happari piece is built on the same standard: fabric verified safe under OEKO-TEX Standard 100, organic fibers certified by GOTS, and a company held to B Corp accountability — not swimwear claims we're asking you to take on faith. If you like this cut, Plus Size Printed Split Tankini and Plus Size Slimming Split Tankini are cut from the same fit logic. Ready to see the full lineup? Browse the Tankini Collection.