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one piece

Wear it like no one else with Boston Proper’s wide collection of sexy one-piece swimsuits. From sensuous solutions to designer fashions, enjoy flattering silhouettes and distinctive details that have been expertly crafted for turning heads at the resort, the beach, and beyond. You won’t find one-piece swimsuits like these anywhere else, so go ahead and treat yourself to bold colors and passionate patterns that are as exclusive as they are unforgettable.
fringe one piece swimsuitQUICK VIEW
fringe one piece swimsuitadd to favorites

$178.00-$178.00 $66.98-$125.00

Get an additional 50% OFF! Select colors only. Use code: SUMMER50.
V strap ring detail one piece swimsuitQUICK VIEW
V strap ring detail one piece swimsuitadd to favorites

$162.00 $80.98

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One shoulder ruched one piece swimsuitQUICK VIEW
One shoulder ruched one piece swimsuitadd to favorites

$166.00 $82.98

Get an additional 50% OFF! Use code: SUMMER50.
Over the shoulder maillotQUICK VIEW
Over the shoulder maillotadd to favorites

$129.00 $64.98

Get an additional 50% OFF! Use code: SUMMER50.
Ombré ring detail one piece swimsuitQUICK VIEW
Ombré ring detail one piece swimsuitadd to favorites

$127.00 $63.98

Get an additional 50% OFF! Use code: SUMMER50.
Side lace up tile print one piece swimsuitQUICK VIEW
Side lace up tile print one piece swimsuitadd to favorites

$142.00 $70.98

Get an additional 50% OFF! Use code: SUMMER50.
Stripe lace up one piece swimsuitQUICK VIEW
Stripe lace up one piece swimsuitadd to favorites

$118.00 $70.98

Get an additional 50% OFF! Use code: SUMMER50.
Cap sleeve plunging lace up one piece swimsuitQUICK VIEW
Cap sleeve plunging lace up one piece swimsuitadd to favorites

$168.00 $83.98

Get an additional 50% OFF! Use code: SUMMER50.
Side lace-up swim dressQUICK VIEW
Side lace-up swim dressadd to favorites

$120.00 $46.98

Get an additional 50% OFF! Use code: SUMMER50.
Python print one piece swimsuitQUICK VIEW
Python print one piece swimsuitadd to favorites

$118.00 $70.98

Get an additional 50% OFF! Use code: SUMMER50.
One shoulder leopard floral one piece swimsuitQUICK VIEW
One shoulder leopard floral one piece swimsuitadd to favorites

$146.00 $57.98

Get an additional 50% OFF! Use code: SUMMER50.
Beaded plunge one piece swimsuitQUICK VIEW
Beaded plunge one piece swimsuitadd to favorites

$155.00 $92.98

Get an additional 50% OFF! Use code: SUMMER50.
Embellished cap sleeve one piece swimsuitQUICK VIEW
Embellished cap sleeve one piece swimsuitadd to favorites

$108.00 $53.98

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Halter Lurex one piece swimsuitQUICK VIEW
Halter Lurex one piece swimsuitadd to favorites

$123.00 $61.98

Get an additional 50% OFF! Use code: SUMMER50.
Rockstud mesh one piece swimsuitQUICK VIEW
Rockstud mesh one piece swimsuitadd to favorites

$118.00 $58.98

Get an additional 50% OFF! Use code: SUMMER50.
Reversible animal high leg one piece swimsuitQUICK VIEW
Reversible animal high leg one piece swimsuitadd to favorites

$129.00 $62.98

Get an additional 50% OFF! Use code: SUMMER50.
Off the shoulder ruffle animal one piece swimsuitQUICK VIEW
Off the shoulder ruffle animal one piece swimsuitadd to favorites

$139.00 $69.98

Get an additional 50% OFF! Use code: SUMMER50.
Cutout zip up one piece swimsuitQUICK VIEW
Cutout zip up one piece swimsuitadd to favorites

$168.00 $99.98

Get an additional 50% OFF! Use code: SUMMER50.
Fringe overlay one piece swimsuitQUICK VIEW
Fringe overlay one piece swimsuitadd to favorites

$154.00 $76.98

Get an additional 50% OFF! Use code: SUMMER50.
Foil leaf print one piece swimsuitQUICK VIEW
Foil leaf print one piece swimsuitadd to favorites

$188.00 $111.98

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Lace up front one piece swimsuitQUICK VIEW
Lace up front one piece swimsuitadd to favorites

$128.00 $76.98

Get an additional 50% OFF! Use code: SUMMER50.
off the shoulder ruffle colorblock one piece suitQUICK VIEW
off the shoulder ruffle colorblock one piece suitadd to favorites

$129.00 $51.98

Get an additional 50% OFF! Use code: SUMMER50.
off the shoulder ruffle colorblock one piece suitQUICK VIEW
off the shoulder ruffle colorblock one piece suitadd to favorites

$129.00 $51.98

Get an additional 50% OFF! Use code: SUMMER50.
off the shoulder ruffle colorblock one piece suitQUICK VIEW
off the shoulder ruffle colorblock one piece suitadd to favorites

$129.00 $51.98

Get an additional 50% OFF! Use code: SUMMER50.
Beaded plunging one piece swimsuitQUICK VIEW
Beaded plunging one piece swimsuitadd to favorites

$148.00 $73.98

Get an additional 50% OFF! Use code: SUMMER50.
Belted crochet one piece swimsuitQUICK VIEW
Belted crochet one piece swimsuitadd to favorites

$128.00 $63.98

Get an additional 50% OFF! Use code: SUMMER50.
Hardware plunge floral one piece swimsuitQUICK VIEW
Hardware plunge floral one piece swimsuitadd to favorites

$138.00 $109.98

Get an additional 50% OFF! Use code: SUMMER50.
Paisley one shoulder one piece swimsuitQUICK VIEW
Paisley one shoulder one piece swimsuitadd to favorites

$154.00 $76.98

Get an additional 50% OFF! Use code: SUMMER50.
Passionflower one piece swimsuitQUICK VIEW
Passionflower one piece swimsuitadd to favorites

$165.00 $82.98

Get an additional 50% OFF! Use code: SUMMER50.
Push up mesh maillot one piece swimsuitQUICK VIEW
Push up mesh maillot one piece swimsuitadd to favorites

$123.00 $73.98

Get an additional 50% OFF! Use code: SUMMER50.
Chevron print one piece swimsuitQUICK VIEW
Chevron print one piece swimsuitadd to favorites

$168.00 $65.98

Get an additional 50% OFF! Use code: SUMMER50.
ruffle eyelet one piece swimsuitQUICK VIEW
ruffle eyelet one piece swimsuitadd to favorites

$138.00 $68.98

Get an additional 50% OFF! Use code: SUMMER50.
Scalloped strapless one-piece bandeau swimsuitQUICK VIEW
Scalloped strapless one-piece bandeau swimsuitadd to favorites

$120.00 $47.98

Get an additional 50% OFF! Use code: SUMMER50.
  1. Plunging gold detail one-piece swimsuit
    Plunging gold detail one-piece swimsuit
    23 Reviews
    4.3
    5
    23
  2. Lace up front one piece swimsuit
    Lace up front one piece swimsuit
    5 Reviews
    4.2
    5
    5
  3. Cutout zip up one piece swimsuit
    Cutout zip up one piece swimsuit
    3 Reviews
    5.0
    5
    3
  4. Side lace-up swim dress
    Side lace-up swim dress
    6 Reviews
    4.5
    5
    6
  5. Reversible animal high leg one piece swimsuit
    Reversible animal high leg one piece swimsuit
    3 Reviews
    4.7
    5
    3
  1. 2 weeks ago
    Beautiful!
    I bought this for my Mexican vacation in pink color.I love this swim.So elegant and great quality.The little gold details make this swim look very nice.I ordered in black color also.
  2. 1 year ago
    I would buy this in white if I looked good in white.........
    I am an older woman who still wants to look sexy and this suit is well made, strategically correct for the body and classy. It fits perfect, so if you are a size 10, buy the 10. I purchased it in black, and if I looked good in white I would buy it again in white. I currently have a black one piece suit I have almost worn out because I could not find one to replace it. I am taking this suit on my cruise in May and am excited to see the reaction from my friends when they see it. I feel like I ... read more have won the "#sweepstakes" when it comes to this suit.
  1. 5 months ago
    Beautiful!
    I bought a size 8 because I like one pieces because I liken to swim and stretch without them riding up - I had to return it for a 10 - which fits perfect.im 5 5”!ans weigh 135
  2. 2 months ago
    Beautiful suit, fits perfectly
    I bought this 3 weeks ago and I'm so happy with the look.
  1. 2 months ago
    Great material
    Swimsuit fits perfect, the quality of the material is superb.
  2. 5 months ago
    Very different.....
    Love the look, it’s really different and flattering.
  1. 2 months ago
    I ordered 2 sizes bigger and it's perfect
    In clothes I wear a 6, in bathing suits I tend to weat an 8. I bought a size 10 based on reviews that it ran small and it's perfect. No way could I have worn an 8 because you have to step into this and when I pulled it over my hips I heard the elastic of the waist really "stretch" so this couldn't have been smaller. 10 was the right decision. I dn't have big hips so I'm surprised a 10 worked. This does show a bit more "side breast" than I thought, but I think I can "sinch" the straps if I ... read more want. I won't because it looks superb on. Very happy.
  2. 11 months ago
    I recommend this swimsuit
    It fits perfectly and it it flattering in all the right places!
  1. 1 month ago
    Classic Style
    Love the cut and print of the suit but it runs large. The straps kept falling off my shoulders and it didn't hug my waist. Getting in the water would just make it worse. I sent it back for a smaller size. It seems like their sizes are getting larger since becoming, "Beyond Proper "
  2. 3 months ago
    Slimming!
    I bought this recently and am very pleased with the fit. The high cut feature is an added plus. Love that it is reversible. Considering buying the swim suit in other colors! I did order one size larger than I normally wear, as I am 5 ft 9 with a long torso. That worked beautifully.