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EFFINI

Effini One-Piece

Effini One-Piece

$25.99
$69.99 $25.99
Sale Sold out
Shipping calculated at checkout.

Size Chart

How long is shipping?

Shipping takes 24-72 hours for it to be processed, and it should arrive at you're doorstep within 7-15 days.

How can I track my order?

Once you have purchased you will recieve an email saying your item has been brought etc, then 1-2 days later you will get a tracking number and another email saying your order has been shipped.

What is your return policy?

We are very fair & loose end when it comes to returns, if you want more information abut this you can scroll down & click the policy page.

View full details

Update

We're currently going viral on social media and stock is limited. We recommend ordering now before we sell out of stock.

Limited Time Offer

Only 12 left — Sale ends in:

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Over 250K Views & Counting As Seen on TikTok 👀 Viral Favorite Over 250K Views & Counting As Seen on TikTok 👀 Viral Favorite
Over 250K Views & Counting As Seen on TikTok 👀 Viral Favorite Over 250K Views & Counting As Seen on TikTok 👀 Viral Favorite

Store Reviews

  • Flattering in front of a white wall. I’m not sure if the illusion will work at the pool or beach though.

    - Victoria Thomas.

  • True to size- it is a flattering bathing suit


    - Mimi

  • This product is wonderful. The white triangles give the illusion of perfect curves making you feel so confident it is tummy controlling, and I have larger chest area I felt very secure and covered. It feels very confident.


    - Jessica Leitz


  • Good one-piece. It definitely gave me shape, but cut me off a bit in the thighs. Not my favorite bathing-suit. Material was decent but felt tight putting it on.


    - Brittany Nightly

1 4

Excellent 4.8 / 5 ★★★★★

based on 1,824 reviews

★★★★★

total confidence boost

Makes me feel confident at the beach. That’s rare!

Kelsey B. – 2 days ago – Naples, FL
★★★★★

waist snatched

Snatches my waist perfectly. Love it!

Jasmine R. – 1 day ago – Los Angeles, CA
★★★★★

unexpected fave

Didn’t expect to love this so much—10/10 fit.

Emily G. – 4 days ago – Denver, CO
★★★★★

crazy flattering

The side paneling really flatters your shape!

Amber V. – 3 days ago – Charleston, SC
★★★★★

vacay must-have

Wore it in Tulum and got SO many compliments.

Danielle P. – 5 days ago – Phoenix, AZ
★★★★★

lux without the price

It’s giving luxury without the price tag.

Heather M. – 1 day ago – New Orleans, LA
★★★★★

perfect for moms

Perfect for mom bods like mine—thank you Effini!

Claire T. – 2 days ago – Omaha, NE
★★★★★

cute & comfy

Holds everything in without feeling tight. Obsessed.

Maya S. – 2 days ago – Houston, TX
★★★★★

my new fave

Even cuter in person. My new fave!

Savannah K. – 3 days ago – Salt Lake City, UT
★★★★★

buttery soft

The material is buttery soft. I was not ready.

Brianna J. – 2 days ago – San Diego, CA
★★★★★

super flattering

Fits like it was custom made for me.

Tina H. – 1 day ago – Boston, MA
★★★★★

sexy but simple

It’s simple but still sexy. Exactly my vibe.

Lauren N. – 4 days ago – San Jose, CA
★★★★★

his fave on me

My boyfriend said it’s his favorite suit on me 😍

Sierra Z. – 1 day ago – Tampa, FL

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FAQ – Effini Apparel

What are your clothes made of?

Our pieces are crafted from high-quality fabrics like linen blends, cotton, and soft knits — designed for both comfort and style. We focus on breathable, flattering materials that feel as good as they look.

What’s the delivery time?

Orders are processed within 24–72 hours and usually arrive within 7–15 business days. You’ll receive a tracking number once your order ships.

How's Customer Satisfaction?

Great! Over 74k+ customers have ordered from us on TikTok. If you have any questions, don’t hesitate to reach out!

What are your support hours?

Our team is available Monday to Friday, 9 AM – 6 PM (EST) via email at effinihelp@gmail.com.

Can I return or exchange my order?

Please see our returns policy for full details on eligibility and how to start a return or exchange.

How do I care for my clothes?

Follow care tags on each item. Most pieces should be hand washed or washed on delicate, and air dried to keep them looking fresh and lasting longer.