Sorority Bid Day Pool Party Outfit Ideas: What to Wear and What to Skip

By the Bikini Uni team. Updated May 2026.

Bid day at a pool party. The dress code is "swim, but make it intentional." Here's what actually works.

The brief, restated

Bid day. There's a pool involved. There will be photos that go on the chapter Instagram and stay forever. You want to look like you belong without looking like you tried too hard. You want to coordinate with chapter colors without showing up in head-to-toe Greek-letter merchandise.

The pieces that work for this are different from what you'd pick for a beach trip or a team meet. Here's how to think about each part of the outfit.

The swimsuit

Three priorities, in order:

1. It has to photograph well. Bid day photos are taken at every angle, in motion, in groups, in pools. A swimsuit that looks great in a mirror and weird in a photo is the worst mistake. Snug-fitting cuts photograph better than loose. Clean silhouette beats complicated.

2. It has to actually stay on in a pool. You will get pulled in. Hugged in the pool. Jump in. A bikini top secure dry but loose wet ends the night badly. Internal bust elastic, real waistband construction, properly anchored straps. See our lap-swim fit tests.

3. It should reference your chapter palette without being literal. "Navy with maize" on a Michigan-affiliated chapter = intentional. Custom Greek-letter bikini = costume. Repeatable, photographable approach: wear chapter colors in cuts and combinations that work outside chapter context too.

Cuts that consistently work for bid day: athletic two-pieces (clean lines, stay put), one-shoulder one-pieces (photograph beautifully, see our one-shoulder guide), and cinched-waist bikinis (polished without trying — see cinched-waist guide).

Picking colors that actually match your chapter

Pull the actual hex codes. Don't guess from memory or Pinterest. Look up your chapter's official colors on the national website or pull the brand book. "Navy" varies; "PMS 282" doesn't.

Match against photographed swatches, not color names. A swimwear brand's "Royal Blue" might be a different blue than your chapter's "Royal Blue." Look at on-body photos.

Two-color combos beat single-color matches. Navy and yellow chapter? A two-piece in navy with yellow trim or a colorblock one-piece with both reads stronger than solid navy. Brands that explicitly do school-color combos (like our Boomerang in Navy with Maize, Maroon with Gold, Carolina Blue) make this easier.

If your chapter color is unflattering on you, use it as accent. Chartreuse on a swimsuit is hard. Chartreuse trim on navy is fine.

What to wear over the swimsuit

You're not in the pool the whole time. Most of bid day is photo backdrops, food, hugs, walking. The cover-up matters as much as the swim.

A wrap or sarong. Tied at the hip or worn as a halter. Heritage wraps in chapter colors work especially well — the Bikini Uni wraps are designed for this transition.

White shorts and a button-down. Cleanest option. Throw on over the suit, take off at the pool. Reads effortless and prep-school. Photographs flat and forgiving.

A linen kimono or duster. Adds movement to photos, doesn't compete with the swimsuit, easy on and off.

Skip: T-shirts (too casual), full dresses (hard to remove cleanly), anything with chapter letters in giant block lettering.

"Chapter colors in a clean cut beats chapter letters every time. The photo lasts forever; the letters date instantly."

The accessories that work

Hair down or in a sleek pony. Bid day photos last forever; messy buns date them.

Gold or silver hoops, not both. One metal. Hoops photograph better than studs in pool light.

A real bag. Canvas tote in chapter color, straw bag if outdoor, clear pool tote if at the chapter house. Avoid backpacks (read athletic, not the day's vibe).

Slides or sandals you can run in. Wedges and platforms photograph well, walk poorly. Bid day involves stairs, grass, short distances.

Skip: rings (lost in pool), watches (same), necklace longer than a collarbone-skimmer (catches on the suit).

Group photo coordination

If chapter says "wear our colors" or "match this aesthetic":

Define what "match" means. Three options: (1) everyone same exact colorway from same brand, (2) everyone in either color A or color B mixed, (3) loose palette where everyone shows up "in the family." Option (2) photographs best because variation reads intentional. Option (1) works only if you can give everyone time to order from the same product page.

Send a Pinterest board, not a paragraph. "Navy and yellow swim, athletic cut, no Greek letters" gets interpreted differently by 30 women. Pinterest board with 5 reference images aligns the group in 5 seconds.

Order at least four weeks before bid day. Custom-color swim from a small brand takes 3-4 weeks. Ordering the week before means half the chapter is without their suit.

What to skip

Custom Greek-letter bikinis. Read as costume. If chapter tradition includes them, follow tradition. Otherwise skip.

Brand-new shoes. Blistered feet by 2 p.m. defeat any outfit.

Heavy makeup. Pool water + heat + photos = makeup running by activity two. Lighter base, real sunscreen, tinted balm photograph better.

Jewelry you'd be sad to lose. Pool drains have eaten more class rings than anyone wants to count.

Frequently asked questions

What kind of swimsuit should I wear to a sorority bid day pool party?

An athletic two-piece, a one-shoulder one-piece, or a cinched-waist bikini in your chapter's color palette. Cut should photograph cleanly and stay secure when in and out of the pool.

Should I wear my chapter colors to bid day?

Yes, loosely. Swimsuit pulling from your chapter's palette reads as intentional. Custom Greek-letter swim reads as costume.

Is a one-piece or two-piece better for bid day?

Both work. A one-shoulder one-piece is most photo-forward; an athletic two-piece offers more in-and-out flexibility.

What should I wear over my swimsuit during non-pool parts?

A wrap or sarong, white shorts with a button-down, or a linen kimono. Avoid T-shirts and full dresses.

How early should I order a swimsuit for bid day?

Four weeks before, especially if ordering custom colors or from a small handmade brand. Production lead times are typically 3-4 weeks.

Can the whole chapter coordinate without identical suits?

Yes. Define a two-color palette. Share a Pinterest board. Mixed cuts in the same palette photograph more dynamically than 30 identical suits.

What's the photo mistake everyone makes?

Trying too hard. Three or four "look at me" elements competing. Pick one statement (usually the swimsuit), keep everything else simple.

Get the look

Bikini Uni cuts that work for bid day:

One-shoulder: Boomerang One-Shoulder One-Piece in 11 colorways with school-spirit pairings — Navy with Maize, Maroon with Gold, Carolina Blue with White, Green with Orange.

Cinched-waist: Bella Cintura Bikini Set in the same color palette range, metal-ring belt closure.

Classic two-piece: Ameri-Cali Set with independent sizing, or Dos Tierras Set.

Wraps: Heritage wraps work as sarongs, halters, or skirts.

Every Bikini Uni piece sewn by hand in Cali. 5% of every sale supports children who are survivors of abuse and violence.