One-piece swimsuits and retro styles have been embraced by designers, providing flattering pieces that are sophisticated and fashionable.

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The official countdown to summer has begun, and with it comes the search for a swimsuit that fits many needs.

You want something flattering and appropriate, but still a fun reflection of the season. It’s beach apparel, after all.

Fortunately, the return of the one-piece and retro styles have been embraced by designers, and there are more interesting and sophisticated suits than ever.

If you want to rock a tiny bikini, good for you. You probably will look good in anything. But if you need a little help, read on for picks that are on-trend, flattering and beautifully grown up.

CROCHET

The bohemian vibes of the ’70s are all over the runways, and you can get the look in a swimsuit, as well. Crochet details are sexy-sweet and add textural interest to a suit.

A touch of skin is revealed in all the right places in the Becca Crochet Deep-V One-Piece Swimsuit ($118 at Macy’s). A plunging neckline is supported by two bands and the open back has a support tie, making sure everything stays in place.

Marysia Antibes Scallop High Neck Halter Top, $143, and Boy Short 
Bottom, $137; Robin Piccone Sophia Crochet Neck One-Piece Swimsuit, $158; Vitamin A Nightbird Banded Halter Top, $98, and Boyshort Bottom, $95
Marysia Antibes Scallop High Neck Halter Top, $143, and Boy Short Bottom, $137; Robin Piccone Sophia Crochet Neck One-Piece Swimsuit, $158; Vitamin A Nightbird Banded Halter Top, $98, and Boyshort Bottom, $95

The Robin Piccone Sophia Crochet Neck One-Piece Swimsuit ($158 at Nordstrom) adds interest to the basic black maillot with a crochet high-neck panel. A beautiful open back balances the flattering silhouette.

Channel your inner glamazon with the Vitamin A Nightbird Banded Halter Top ($98) and Boyshort Bottom ($95, both at Everything But Water). Pair this suit with shorts and gladiator sandals for a festival-ready look that can take you from the beach to lunch.

HIGH NECK

Flattering and supportive, the high-neck trend is everywhere for this summer. The sweet Marysia Antibes Scallop High Neck Halter Top ($143) and Boy Short Bottom ($137, both at Everything But Water) create a smooth, sporty look.

Also perfect for active beach days is the JETS by Jessika Allen Classique Contrast Cutout High-Neck One-Piece Swimsuit ($199 at Neiman Marcus). The full-coverage suit is finished with cool cutouts that will enhance your curves.

Proving high necklines don’t have to be staid, the Becca by Rebecca Virtue Janice High Neck Halter Top ($74) features a bold woven cutout. Pair it with the Side Tie Hipster Bottom ($54, both at Everything But Water) to show even more flashes of skin.

MESH

Sexy and sporty, mesh is another way to break up the coverage of a one-piece and show hints of skin. The Lauren Ralph Lauren Mesh One-Piece Swimsuit ($149 at Macy’s) is ultra-flattering, with horizontal-striped mesh fabric, strategic lining and a beautiful open back.

Designed with mesh cutouts in flattering locations in back and around the neckline, the Seafolly Mesh About High Neck One Piece Maillot ($202 at seafolly.com) is both athletic and edgy.

Magicsuit Yvonne Halter One-Piece Swimsuit, $172; Norma Kamali XO Bill Mio Combo 
One-Piece Swimsuit, 
$350; Swim by Anthropologie Ruffled Halter Maillot, $118; Vitamin A Soleil 
Mesh Strappy Wrap Halter Bikini Top, 
$33, and High Waist Bikini Bottom, $30
Magicsuit Yvonne Halter One-Piece Swimsuit, $172; Norma Kamali XO Bill Mio Combo One-Piece Swimsuit, $350; Swim by Anthropologie Ruffled Halter Maillot, $118; Vitamin A Soleil Mesh Strappy Wrap Halter Bikini Top, $33, and High Waist Bikini Bottom, $30

Sophisticated high-waist bottoms are balanced by sheer mesh insets on the Vitamin A Soleil Mesh High Waist Bikini Bottom ($30), with full seat and tummy coverage. Pair it with the matching Strappy Wrap Halter Bikini Top ($33, both at Target), with adjustable wrap ties and a hint of mesh above the cups.

HALTER

Halter styles work to keep everything perfectly in place. The connected top and ruched skirt bottom of the Norma Kamali XO Bill Mio Combo One-Piece Swimsuit ($350 at Neiman Marcus) creates a flattering and retro beach-babe look.

The gorgeous plunging neckline of the Magicsuit Yvonne Halter One-Piece Swimsuit ($172 at Nordstrom) proves just how sexy a swimdress can be. Adjustable halter-neck straps ensure a secure fit.

Bikini lovers looking for something sophisticated should check out the Tommy Bahama Remy Retro U-Ring Halter Bikini Top ($98) and coordinating Hipster Bikini Bottoms ($68) in a modern floral print with cool U-ring details.

For pure prettiness, you can’t beat the Swim by Anthropologie Ruffled Halter Maillot ($118 at anthropologie.com). A cross-over top and tie belt, along with a beautiful floral print, add to its ladylike appeal.

MEN

Whether you’re relaxing on the deck or taking a dip in the pool, consider these stylish swim trunks that can double as shorts.

Tommy Bahama Naples Game Set Thatch 6-inch Swim Trunks, $68; Jack Spade Chambray Swim Trunks, $128
Tommy Bahama Naples Game Set Thatch 6-inch Swim Trunks, $68; Jack Spade Chambray Swim Trunks, $128

Cut from chambray, the tailored, mid-length Jack Spade Chambray Swim Trunks ($128 at Nordstrom) are a versatile choice. Pair them with flip flops and a basic tee for a casual look.

A tropical print creates a resort feel on the Tommy Bahama Naples Game Set Thatch 6-inch Swim Trunks ($68). The elasticized waistband creates a comfortable fit, and the length is just right.

Designed in blue and white stripes, the J.Crew 9” Board Short in Nautical Engineered Stripe ($75) has a longer, go-anywhere length and a stylish motif.

A classic gingham pattern adds preppy polish to the Polo Ralph Lauren Gingham Traveler Swim Shorts ($79.50 at Macys). The quick-drying pair is also available in big and tall sizes.