Plus Size Swimwear
Plus size swimwear across one-piece swimsuits, tankinis, swim dresses, bikinis, and board shorts, sized XS through 4X with extended cup-sized options for D-plus fit. Chlorine-resistant polyester construction, full-coverage cuts, tummy-control panels, built-in shorts, and racing-back support across the catalog. Top brands include Penbrooke, Krinkle, Miraclesuit, Magicsuit, La Blanca, JOLYN, and Sporti, with athletic and competition cuts available alongside fashion and resort styles for the beach, pool, lap swim, and water aerobics.
Plus size swimwear covers the full range of swim categories built for sizes 14W through 4X, with extended cup-sized options for D-plus bust fit. The catalog spans one-piece swimsuits, tankinis, swim dresses, bikinis, board shorts, and athletic training cuts, with construction features specific to plus-size fit including reinforced underwire, racing-back support, tummy-control panels, and chlorine-resistant polyester. Most plus-size customers split their swimwear across two purposes: fashion and resort wear for beach and pool, and athletic wear for lap swim and water aerobics.
Sub-Types Available
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One-Piece Swimsuits: The most-purchased plus-size cut. Includes scoopneck, V-neck, surplice-front, racing-back, and high-neck cuts with shelf-bra, underwire, and D-cup support construction.
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Tankinis: Two-piece sets with a tank-style top and separate bottom, the option to size top and bottom independently. The standard pick from Penbrooke and Krinkle for full-torso coverage with mix-and-match fit.
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Swim Dresses: A-line skirted swimsuit with built-in bottom, providing upper-thigh coverage and full-torso coverage in a single garment. Standard pick for added hip and thigh coverage.
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Bikinis: Two-piece sets with extended-coverage cuts including high-waist bottoms, halter and underwire tops, and cup-sized fit options.
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Board Shorts and Swim Shorts: Standalone bottoms with 4-inch to 9-inch inseams, designed for hip and thigh coverage paired with a separate top.
Coverage and Support Features
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Full Coverage: Higher front necklines, wider strap construction, and full-back coverage that stays in place during movement.
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Tummy-Control Panels: Built-in compression panels through the midsection that provide added smoothing and structure. Standard on most Miraclesuit and Magicsuit plus-size styles.
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Built-In Shorts: Attached 2-inch to 4-inch inseam under the suit body, the option for hip coverage without a separate cover-up.
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Underwire and Shelf-Bra Support: Cup-sized construction with reinforced bust support, the standard pick for D-cup and above.
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Racing-Back Construction: Wider shoulder coverage with crossed-back strap design, the option for added bust security during active swim.
Chlorine-Resistant Construction
Chlorine-resistant polyester suits last 5 to 10 times longer than standard nylon-spandex in chlorinated pools. The fabric stretches less over time, holds color through repeated wash cycles, and maintains shape through chemical exposure. This is the standard fabric pick for plus-size customers who swim weekly in pools. Sporti, Penbrooke, and TYR build their plus-size lap swim catalogs around chlorine-resistant polyester construction.
Athletic and Sports Cuts
Plus-size athletic swimwear covers lap swim, water aerobics, pool exercise, and competition training, with cuts including racing-back one-pieces, jammer-cut bottoms, and high-neck training tops. Construction features include reinforced seams, leg-grippers to prevent ride-up during movement, and chlorine-resistant polyester for durability. This is the segment where the SwimOutlet catalog runs deepest.
Size Range and Fit
Sizing runs XS through 4X across the catalog, with numeric ranges 14W through 26W on many one-piece styles and cup-sized 36DD through 42G on underwire and structured-cup styles. For deeper plus-size category browsing across one-pieces, see plus-size one-piece swimsuits. For tankinis, see women's tankinis. For swim dresses, see women's swim dresses. For a deeper breakdown on choosing plus-size swimwear, see the plus-size swimwear guide.
