Yoga Wear Size Charts: Grading Activewear from XS to 3XL
Fit is where most activewear re-orders are won or lost. A legging can look perfect on a sample mannequin and still bag at the knee, ride down, or split at the gusset on a real, moving body — and almost every one of those failures traces back to the size chart and the grading rules behind it. This is the practical sizing playbook we hand every brand before bulk: the standard women's activewear chart, how each size actually grades up, how to measure, and where yoga wear sizing quietly breaks. If you are building a line with a custom yoga wear manufacturer, the size spec is the second decision (after fabric) that protects your return rate.
The Standard Women's Activewear Size Chart (XS–3XL)
Activewear is graded on its own chart — not the dress chart, not the ready-to-wear chart. For a women's yoga/legging line the body measurements below are the baseline we lock before a pattern is cut. Numbers are body measurements in inches (cm in brackets), taken on a relaxed, natural stance:
| Size | Bust | Waist | Hip | Approx. US |
|---|---|---|---|---|
| XS | 31–32 (79–81) | 23–24 (58–61) | 33–34 (84–86) | 0–2 |
| S | 33–34 (84–86) | 25–26 (64–66) | 35–36 (89–91) | 4–6 |
| M | 35–37 (89–94) | 27–29 (69–74) | 37–39 (94–99) | 8–10 |
| L | 38–40 (97–102) | 30–32 (76–81) | 40–42 (102–107) | 12–14 |
| XL | 41–43 (104–109) | 33–35 (84–89) | 43–45 (109–114) | 16–18 |
| 2XL | 44–46 (112–117) | 36–38 (91–97) | 46–48 (117–122) | 18–20 |
| 3XL | 47–49 (119–124) | 39–41 (99–104) | 49–51 (124–130) | 22–24 |
This is a starting chart. Real bodies in the Gulf, Africa and Central Asia often sit between sizes, which is why we grade a physical sample on a live fit model before committing the run — the chart is the spec, the sample is the proof.
How Grading Actually Works (the +inches between sizes)
"Grading" is the rule that moves the pattern from one size to the next. For missy activewear the conventional grade is about 1 inch (2.5 cm) per size on bust, waist and hip, while height stays roughly constant and only the vertical rise (inseam, crotch) shifts slightly. The trap is assuming the grade is perfectly linear — it isn't:
- Straight sizes (XS–XL): ~1" per size on each circumferential point. Predictable, safe to automate.
- Plus sizes (1X–3XL): the grade often opens to ~1.25–1.5" per size on the hip, because plus bodies scale wider, not just taller. Flat +1" grading here is the #1 cause of "too tight across the bum" complaints.
- Compression wear: runs intentionally small. A high-waist compression legging is graded to sit negative against the body, so a buyer who is an L in a dress is usually an M in compression. We publish the body chart, then advise the compression size down one.
Measuring a Body vs Measuring a Garment
A "size M" means nothing until you know which body it was measured on. Before bulk we capture both:
- Bust — fullest point, arms relaxed, tape level around the back.
- Waist — the natural narrowest point, not the trouser waistband.
- Hip — fullest point of the seat, ~7–8" below the waist.
- Inseam / rise — crotch to ankle bone; this is where leggings split into "ankle", "7/8" and "full".
- Garment flat — we measure the finished legging laid flat and back-calculate stretch; a 12" flat waist that stretches to 16" is a different garment than one that stretches to 19".
The gap between body measurement and finished garment is called negative ease — how much smaller the garment is than the body so it hugs. Yoga leggings run 2–4" of negative ease; lounge wear runs near zero. Get this wrong and the same size chart fits like two different products.
Where Activewear Grading Breaks (and how to avoid returns)
- Bra band sizing: sports bras grade on band (under-bust), not bust. A 34" band graded like a 34" dress waist will roll and dig. Band grade stays tight; cup volume scales instead.
- Rise drift: as sizes go up, the crotch rise must lengthen or the legging rides down. We add ~0.25" of rise per plus size specifically to stop this.
- Length creep: plus buyers are often taller, so we offer a "tall" inseam option rather than assuming one length fits the whole 1X–3XL range.
Plus-Size & Extended Grading (1X–3X)
For the extended range we widen the grade and relax the waistband elastication so the same size feels supportive, not strangling:
| Plus size | Bust | Waist (relaxed) | Hip | Grade note |
|---|---|---|---|---|
| 1X | 44–46 | 36–39 | 46–49 | Wider hip grade |
| 2X | 48–50 | 40–43 | 50–53 | +1.25–1.5" per size |
| 3X | 52–54 | 44–47 | 54–57 | Tall inseam advised |
Plus-size activewear is one of the fastest-growing requests we get from African and Gulf buyers, and the brands that win it are the ones that re-grade rather than re-tag. The same logic applies if you later extend into African women's fit guides — local body data beats a copied US chart every time.
MOQ, Lead Time & FOB for a Custom Size Run
A custom size chart does not change the economics of a small run — you can still test a full XS–3XL size curve at low volume:
| Parameter | Standard | Note |
|---|---|---|
| MOQ | 100 pcs per style / colour | Size split is your call across the curve |
| Lead time | 10–15 days | From approved sample, not first inquiry |
| Price basis | FOB from $4.08 | China port; freight arranged by your forwarder |
| Re-order | Pattern & grade locked | 3rd order matches the 1st |
We quote FOB (China port) only — we are not a door-to-door (DDP) shipper. You appoint your freight forwarder; we prepare the export documents (commercial invoice, packing list, HS code, certificate of origin) so your side clears cleanly. A buyer who sees FOB plus their own freight/duty number looks at a supplier who has done this before.
Sample & Approval Flow
- Spec — send your target market and size curve; we return a graded chart and a tech pack with the ease values.
- Sample — we cut one size (usually M) plus your risk size (often 2XL), ship for fit and hand-feel approval (10–15 days).
- Grade check — on approval we grade the full curve and confirm the rise/length adjustments in writing.
- Bulk — production slots in; same pattern, same grade, locked for re-order.
- Ship — FOB China port, full export docs, your forwarder takes it from there.
Frequently Asked Questions
What measurements do I need to start a custom yoga line?
Bust, waist and hip on a relaxed stance, plus the inseam/rise you want and the negative ease (how tight) for the legging. Send a target market too — Gulf and African bodies often need a wider plus-grade than a US chart assumes. With those five numbers we return a graded chart and tech pack.
Why shouldn't I use a dress size chart for leggings?
Because a dress has positive ease and a fixed waist; a knit legging has negative ease and a stretch waist. Drop a dress chart onto leggings and every size comes up a full size too big at the waist and too short at the rise. Activewear needs its own knit body chart, graded from the body, not borrowed from woven wear.
How much does each activewear size grade up?
Straight sizes (XS–XL) grade about 1 inch (2.5 cm) per size on bust, waist and hip. Plus sizes (1X–3XL) usually open to 1.25–1.5 inches per size on the hip because plus bodies scale wider, not just taller. Height and the crotch rise shift only slightly between sizes.
Do plus sizes grade the same as straight sizes?
No. Plus grading widens the hip and relaxes the waistband elastication, and we add roughly 0.25 inch of crotch rise per plus size so the legging does not ride down. A flat +1-inch-per-size rule on plus activewear is the most common cause of "too tight across the bum" returns.
How are shipments priced?
FOB from a China port, from $4.08. We prepare the commercial invoice, packing list, HS code and certificate of origin; your freight forwarder handles international transit and destination clearance. We do not quote DDP or door-to-door, so the landed cost stays in your control.