As summer starts turning up the heat, the search for that perfect bikini begins. Whether you’re hitting a white-sand beach, reclining poolside with a spritz in hand, or just soaking up rays in the backyard, the right swimwear instantly levels up your look, and your mood. So, if you’re wondering what are the best swimwear brands to level up your summer wardrobe, this is the list for you. From affordable gems to luxury splurges, curve-celebrating styles to earth-conscious picks.
Affordable Swimwear Brands
Lounge
Lounge might be best known for its sleek lingerie, but its swimwear range is a secret treasure trove of modern, minimal designs that hug you in all the right places. Expect buttery-soft fabrics, elevated neutrals, and subtly sexy cuts that flatter without shouting for attention. With prices that won’t break the bank, Lounge is a UK swimwear brand perfect for building a swimwear drawer that looks designer but stays budget-conscious.
Calzedonia
Calzedonia’s swimwear blends trend-driven details with timeless shapes, making it easy to mix and match pieces season after season. They also offer a wide range of sizes and styles, from supportive triangle tops to high-waisted bottoms and sleek one-pieces. Bonus: their stores offer in-person try-ons, which is a rare luxury these days.
Boux Avenue
For flirty styles and an ultra-feminine flair, Boux Avenue is a go-to. With regular sales and gorgeous colourways, it’s easy to fall in love with their mix of playful bikinis and chic one-pieces. Many styles are available with cup sizing, which is ideal if you’re after support without sacrificing style. Their designs range from flirty ruffles and lace-up details to sleek, sculpting silhouettes which are ideal for both the beach or pool.
ASOS
The beauty of ASOS is in its sheer variety — whether you’re a fan of retro one-pieces, high-cut ‘90s-style bikinis, or ultra-modern cut-outs, they’ve got something that fits your mood and your body. ASOS caters to a wide range of body types, genders, and style preferences, and their swimwear section is a goldmine of brands at every price point. The best part? There’s always something new dropping, and their easy returns make trying trends low-risk.
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Luxury Swimwear Brands
Frankies Bikinis
Founded by Francesca Aiello, Frankie’s Bikinis are a celebrity favourite especially among Bella Hadid (who has her own collection with the brand) and Kendall Jenner. The bikinis and swimsuits are ultra-soft and come in a range of colours, prints, and styles including triangle and underwire tops. The brands apparel collections are also really cute and make for the perfect beachside cover up.
Monday Swimwear
Body positivity is at the heart of Monday Swimwear, which offers a curated selection of elegant, supportive swimsuits in soft, neutral palettes. Founders and influencers Natasha Oakley and Devin Brugman launched the brand after years of swimsuit modelling — and it shows. Every piece is designed to flatter a range of shapes, with thicker straps, double-lined fabrics, and cuts that enhance natural curves without feeling over-the-top.
Rat & Boa
Rat & Boa brings that dramatic, fashion-forward edge to swimwear that’s often reserved for dresses and party wear. Expect plunging necklines, statement prints, metallic fabrics, and pieces that easily transition from beach to bar. If your style leans toward the unexpected or you want something that looks as at home on the French Riviera as it does at a festival pool party, this is it.
L’Agence
L’Agence is known for its polished, upscale aesthetic — and their swimwear delivers the same sophisticated energy. Their designs lean into clean lines, luxury materials, and chic detailing, ideal for anyone who wants to invest in timeless pieces that last. Whether you’re drawn to their minimalist one-pieces or refined bikinis, every piece is made to flatter.
Plus Size Swimwear Brands
Curvy Kate
Curvy Kate understands fuller busts and builds swimwear that offers serious support without skimping on style. Their pieces are engineered with underwires, thicker straps, and sculpting silhouettes that keep everything in place. With UK sizes up to 44 and cup sizes up to K, they cater to a wide range of curvier body types. Expect fun prints, smart design, and confidence-boosting cuts you’ll be wearing all summer.
Andie Swim
Andie’s claim to fame is their ultra-personalized fit. Their online fit quiz takes the guesswork out of shopping, and their suits are designed for real women’s bodies including fuller busts, long torsos, and even maternity needs. They prioritize comfort, coverage, and timeless design, offering one-pieces and bikinis that can truly be lived in.
Eloquii
Eloquii is a trailblazer in plus-size fashion, and their swimwear continues to impress. Available in sizes 14 to 28, their designs are fearless, flattering, and made for bold summer moments. You’ll find high-waisted bottoms, wrap tops, mesh inserts, and more that all designed to enhance and celebrate curves.
You Swim
Each You Swim design is made from super-stretchy, seamless fabric that adapts to your body’s changes, fitting sizes 2–14 (or XS–XL) in one design. Their sizing model removes the stress of fluctuating bodies — whether you’re pregnant, postpartum, or just want a suit that moves with you. The aesthetic is clean and modern, with solid colours and ribbed textures that feel elevated. Bonus: they’re sustainable and ethically made in the UK.
Sustainable Swimwear Brands
Tropic of C
When a swimwear brand is founded by a Victoria’s Secret supermodel, you know it’s going to be good. Candice Swanepoel created Tropic of C that merges model-off-duty cool with eco-conscious craftsmanship. Their pieces are made from regenerated nylon and eco-friendly textiles, but you’d never guess — they’re buttery soft and designed to fit like a second skin. With earthy tones, high-cut silhouettes, and modern minimalism, these suits are both Instagrammable and investment-worthy.
Peony
Peony is an Australian swimwear brand that uses only recycled and sustainable fabrics across every collection. Their feminine aesthetic and delicate details make every piece feel like a love letter to beach days. With structured yet flattering designs, Peony offers something elegant for every age and stage of life. You can relax easy knowing that your bikini or swimsuit is all made with the planet in mind.
Balzac Paris
This chic French label brings its ethical fashion philosophy to swimwear with clean cuts and timeless prints. Balzac Paris is serious about transparency and sustainable production. Think recycled materials, fair wages, and carbon-conscious shipping. Their designs carry a Parisian twist offering classics like high-waisted bikinis and structured one-pieces in rich, neutral palettes. It’s swimwear that feels as good to wear as it does to buy.
Vitamin A
Vitamin A has long been a pioneer in eco-swimwear, using plant-based and recycled fabrics that feel just as luxe as traditional materials. Their designs are inspired by the effortless cool of California — breezy, modern, and ultra-flattering. From minimalist silhouettes to boho-inspired details, there’s a style for everyone. Plus, they support environmental initiatives with every purchase, so you can feel doubly good about what you’re wearing in and out of the water.
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