Arula Size Chart Guide: How A, B, C, and X Sizing Really Works for Your Body
If you’ve ever stared at an Arula size chart and wondered whether you’re an A, B, C, or X, you’re not alone. Our sizing system isn’t arbitrary—it’s built around four distinct body proportions, not vanity numbers.
This guide walks you through exactly what each letter represents, how to take your measurements at home, and which code fits your frame. We designed the system to respect real bodies, so understanding it once means every Arula piece you order will fit the first time.
What the Letters Actually Mean: A, B, C, X Decoded
Arula’s A, B, C, and X codes map to four body-proportion profiles, not dress sizes. A is designed for narrower shoulders and a straighter silhouette from bust to hip. B fits a balanced frame where bust and hip measurements sit within two inches of each other. C accounts for a fuller hip relative to the bust—think pear or triangle shapes. X represents an hourglass proportion with defined waist and fuller bust and hip.
Each letter corresponds to a different pattern draft, which is why an Arula Medium-B drapes differently than a Medium-C even though both are labeled Medium. The number (XS through 3X) scales the overall volume; the letter adjusts where that volume sits on your body.
How to Measure Yourself for Arula Sizing
You need three measurements: bust, natural waist, and hip. For bust, wrap the tape around the fullest part of your chest while wearing an unpadded bra. Natural waist sits at the narrowest point between your ribs and hips—don’t pull the tape tight, just snug. Hip measurement goes around the fullest part of your seat, usually seven to nine inches below your waist.
Write all three numbers down in inches. Compare the difference between bust and hip: if they’re within two inches, you’re likely a B. If your hip is three or more inches larger, C. If your bust is larger and your waist is noticeably smaller than both, X. If measurements are close and your frame reads straight, A. The fit philosophy behind our patterns mirrors techniques used in technical garment construction standards, where proportion ratios govern pattern blocks rather than arbitrary size labels.
Between Two Sizes? Here’s How to Decide
If your measurements land between two letters, pick based on where you want the most room. Someone measuring B proportions but close to C at the hip should size to C if they prefer a looser fit through the hips and thighs. If you’re between A and B, consider whether you want a closer fit through the shoulders (A) or slightly more ease across the bust (B).
For the numeric size, round up if you’re between numbers and you prefer comfort over a tailored fit. Round down only if you plan to layer underneath or if the fabric has stretch. Once you know your baseline Arula code—say, Medium-C—that same designation will work across most of our catalog, though individual styles may drape differently depending on fabric weight and cut.
Why Arula Doesn’t Use Standard S-M-L Alone
Standard small-medium-large sizing assumes one body shape at each size, which forces most brands to grade patterns in a single direction. That approach leaves out anyone whose proportions don’t match the industry’s assumed hourglass or rectangle. We wanted every customer to find a fit that actually follows their shape, so we split sizing into two variables: overall scale (the number) and proportion (the letter).
This dual-axis system costs more to produce—it means we carry four times as many SKUs as a traditional brand—but it also means you’re not stuck choosing between a too-tight waist and gaping shoulders. The same attention to individual variation appears in specialty luggage design, where manufacturers like those behind purpose-built travel collections customize dimensions for different packing styles rather than offering one universal size.
Your Arula Code, Decoded
Once you’ve measured yourself and identified your letter, write it down. That code is your key to every piece in our catalog—no more guessing, no more sizing roulette.
The system works because it’s built on real proportion data, not marketing. Take the ten minutes to measure accurately once, and you’ll skip the return cycle most online shoppers accept as normal. Your Arula fit is waiting; you just need the right coordinates to find it.
Common Questions About Arula’s Letter Sizing
Not reliably. A size 8 at one brand might be our Medium-B, but at another it could be our Small-C. Take your three measurements and use our chart rather than relying on what you wear elsewhere.
Vanity sizing has made traditional numbers almost meaningless across brands. Our letter system removes that guesswork.
Yes, with rare exceptions. A Medium-C in one dress will match a Medium-C in another, though fabric and cut affect drape. Styles marked as ‘relaxed fit’ or ‘slim fit’ note that in the product description.
If a specific piece runs differently, we call it out on that item’s page. Otherwise your usual code applies.
Real bodies don’t always align with four neat categories. If you’re genuinely split—say, B proportions in the bust but C at the hip—order the size that prioritizes your fit preference.
Many customers keep two codes on hand for different silhouettes. There’s no single right answer; it depends on whether you value ease at the shoulder, waist, or hip.
We don’t separate plus and standard sizing into different charts. Our numeric scale runs XS through 3X in the same letter categories, so a 2X-C follows the same proportional logic as a Small-C.
Petite and tall variations adjust length, not width. If you usually shop petite, check the inseam and torso measurements listed for each style.
Yes. Unworn items with tags attached can be exchanged within thirty days. If you’re unsure between two sizes, some customers order both and return one.
Our customer service team can also review your measurements before you order if you want a second opinion on which letter fits best.
Not at this time. The four-letter framework covers the vast majority of body proportions without requiring bespoke tailoring.
If your measurements fall far outside our ranges, email our fit team. We occasionally expand sizing based on demand patterns.