How to Find Your Perfect Fit at Agua by Agua Bendita
Author: Stylist at TellarDate: 2026
SIZING GUIDE · RESORT WEAR
The brand is breathtaking. The sizing? A little wild. Here's how to get it right first time.
By Ella Blake | Tellar Fashion Hub
If you've ever fallen head-over-heels for an Agua by Agua Bendita piece and then spent twenty frustrating minutes second-guessing your size online, you're absolutely not alone. The short answer: Agua runs small — consistently, noticeably, and by more than you'd expect. Most women need to size up one, and sometimes two, from their usual UK size. I learned this the hard way, staring at a beautifully embroidered bikini top that I physically could not close. A painful lesson, but a useful one.
Who Is Agua by Agua Bendita?
Agua by Agua Bendita is the diffusion line from the Colombian luxury swimwear house Agua Bendita. Born in Bogotá and beloved on the world's most stylish beaches, the brand is known for its hand-finished detailing, artisan embroidery, and those dreamy botanical prints that make you feel like you've stepped into a magical Colombian garden. It's swimwear that genuinely feels like wearable art — which is exactly why getting the right size matters so much. These are not pieces you want to return.
The Sizing Reality: What You Need to Know
Agua by Agua Bendita sizes run in XS through XL, but they're calibrated to a Colombian fit — which typically means narrower across the back, shorter in the torso, and snugger through the bust than most UK high street sizing. Here's what I'd always keep in mind:
Size up at least one size from your usual UK sizing — if you're normally a 10, start with a 12 (Medium)
Bust-forward shoppers should consider sizing up two — the cups run small and cups aren't adjustable
Check the torso length if you're buying a one-piece — the cut tends to sit high on the hip and short in the body
Bottoms and tops don't have to match — it's perfectly fine (and common) to buy a different size top and bottom
The tie styles offer most flexibility — if you're between sizes, a string-tie bikini top is much more forgiving than a moulded cup style
💡 Stylist's tip: When I'm unsure between two sizes in a structured Agua top, I always go for the larger one. You can tie it tighter. You can't magic extra fabric out of nowhere.
How to Measure Yourself for Agua
Before you order, take three measurements with a soft tape measure: your bust (at the fullest point), your waist (the narrowest point), and your hips (the fullest point). Then compare against Agua's own size chart — which you'll find on their product pages — using your largest measurement as your guide, not the smallest. If your bust puts you in a Medium but your hips push to a Large, take the Large. Always.
XS — typically fits a UK 6–8, bust 81–84cm
S — typically fits a UK 8–10, bust 85–88cm
M — typically fits a UK 10–12, bust 89–93cm
L — typically fits a UK 12–14, bust 94–98cm
XL — typically fits a UK 14–16, bust 99–104cm
These are guidelines, not gospel — individual styles vary. A structured underwired top will fit differently to a ruched bandeau. Always read the individual product notes.
Which Styles Are Most Size-Sensitive?

Not all Agua styles are equally unforgiving. Some are much easier to size for than others:
Triangle bikini tops — the most flexible; ties give you room to adjust
Bandeau tops — size up if you're a fuller bust; can feel very tight across the chest in the wrong size
Underwired tops — these are the trickiest; if in doubt, go up two sizes and tie the straps tighter
One-pieces — torso length is crucial; petite frames may find them gaping at the back even in XS
Cover-ups and kaftans — much more relaxed; true to size or even size down if you like a fitted look
High Street Alternatives If You Can't Quite Make Agua Work
Look, sometimes the sizing just doesn't cooperate, and that's genuinely frustrating when you love a brand's aesthetic. The good news is there are brilliant alternatives that offer a similar resort-luxe energy with sizing that's far more straightforward:
Anthropologie — stocks Agua itself but also carries gorgeous resort-inspired swimwear from smaller labels; sizing is consistent and they have a genuinely helpful fit guide
Mango — has absolutely nailed the botanical print swimwear moment and sizes very true to UK norms; brilliant for that Agua-adjacent feel without the sizing stress
Zara — their premium swimwear lines have been stunning lately; sizes run slightly small but consistently so
H&M — their premium swim collections offer incredible value and size inclusively; great for testing a print or silhouette style before committing to a luxury piece
ASOS — brilliant for comparing multiple swimwear brands side by side; their own label sizes consistently and their returns policy takes the pressure off
Cos — if you love Agua's sophisticated, less-is-more resort wear pieces like cover-ups and wrap skirts, COS does a beautiful line at a fraction of the price
Me&Em — exceptional quality swimwear and resort pieces with clear UK sizing; particularly good for fuller bust styles and modest swim coverage
For something a little more under-the-radar, two brands I genuinely love recommending right now:
Cleonie — an Australian brand that's quietly become a cult favourite among fashion editors; their prints rival Agua's and sizing is generous and consistent
OY Leisure — a London-based independent doing slow-fashion swimwear with incredible drape; sizes are UK-standard and you can email them directly with measurements for advice. Very special.
Can You Return Agua Swimwear?
This is important to check before you order. Agua's return policy varies by retailer. If you're buying directly from their website, swimwear is typically non-returnable for hygiene reasons unless faulty — which makes getting the size right before you order absolutely essential. Buying through a third-party retailer like ASOS or Anthropologie may give you more flexibility, so always check before you buy.
Never Guess Your Size Again — Use Tellar
This is exactly the kind of sizing headache that Tellar.co.uk was built to solve. Tellar is the UK's leading free clothing sizing tool — you measure once (bust, waist, hip, or simply your size in a brand you already know fits) and Tellar instantly matches your body to the right size across 1,500+ brands. No more size charts. No more guessing. No more returns.
Here's how it works:
Step 1 — Measure once: bust, waist, and hip measurements, or just enter your size in a brand you trust
Step 2 — Use the Store Size Lookup tool to get your precise recommended size across any brand in their database — from Zara to premium resort labels
Step 3 — Shop with confidence. Entirely free. No app download. Works in any browser.
And if you love fashion content, the Tellar Fashion Hub is a library of free, unsponsored style guides written by real stylists. No ads, no affiliate bias — just honest advice. Exactly like this.
FIND YOUR SIZE NOW — IT'S FREE →
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