How to find plus size tops that fit fuller arms
No Woman Within size chart lists armhole or sleeve width specifications, so it's best for you to choose a cut that works for your body. Elbow-length sleeves and relaxed knit fabrics traditionally give the most room through the upper arm.
Why armholes and sleeves are the fit no chart tracks
A bust measurement and a hip measurement tell you almost nothing about how a top will feel on your upper arm. Our Woman Within® tops size charts do not list armhole depth, bicep circumferences, or a sleeve opening measurement, so two tops in the same size can behave completely differently at the shoulder. A deep, wide-cut armhole on a tank top may show the side of your bust and the bra straps. A set-in short sleeve, seamed tight at the shoulder, can fit closely to your arm before it reaches the elbow. The fix isn't ordering a bigger size — it's best to select a different cut.
How to check the cut before you buy
Read the product description for three details: sleeve length, fit description, and fabric. A style is worth trying when the copy says "relaxed fit," "elbow-length," or "stretch knit" — those three phrases predict comfort at the upper arm better than the size number does.
- Sleeve length: elbow, rolled or three-quarter sleeves give more room than a short set-in sleeve, because the sleeve widens before it ends instead of tapering right at the shoulder seam.
- Fit description: "relaxed," "easy," or "swing" carries room through the whole garment instead of pulling it tight at one point.
- Fabric: a knit, like the cotton/poly interlock in the elbow-sleeve polo tunic, stretches and moves with the arm; while a woven top in the same size won't.
If a listing doesn't mention sleeve length or fit, that's the detail to ask about before you order, not after it arrives.
How to read Woman Within's fit information
Woman Within sizes run 10W–44W across Petite, Average Women's and Tall lengths, so length is one more lever you can pull if a torso-length top pulls at the arm before it pulls at the hem. A shorter length in the same width often sits differently across the shoulder and armhole, so check both the size and the length option together, not the size alone.
If you're between sizes
Size up when the choice is between a snug fit and a relaxed one, especially in a woven fabric with no Spandex stretch. In a stretch knit — like the lightweight knit used in the Perfect Scoopneck Tank Top — the fabric has more built-in give, so staying true to size is usually fine. When in doubt on a sleeveless or short-sleeve style, sizing up costs you nothing at the hem and buys you real room in the arms and armholes.
What the cut is actually doing, style by style
Four cuts solve the upper-arm problem in different ways. Compare them by sleeve length and what that length does mechanically:
| Style | Sleeve | Fit | What it does for a fuller arm |
|---|---|---|---|
| Perfect Scoopneck Tank Top | Sleeveless | Relaxed, with side hem slits | Bust darts shape the neckline so the armhole sits closer to the body instead of gapping open. |
| Perfect Short-Sleeve V-Neck Tee | Short, hits above the elbow | Classic, relaxed | A non-cling silhouette keeps the sleeve from binding at the point where a fuller arm is widest. |
| Elbow-Sleeve Polo Tunic | Elbow-length with ribbed cuffs | Relaxed, easy fit | The sleeve widens before the ribbed cuff, so it clears the upper arm instead of stopping at it. |
| Ruffled Elbow-Sleeve Tunic | Elbow-length, tiered ruffle | Swing silhouette | A swing cut carries room down through the body, so nothing pulls the fabric tight against the arm. |
Frequently asked questions
Why are the armholes so big on plus size tanks?
Armhole depth varies by brand and even by style within a brand, so it's important to view all product images closely. A wide, deep-cut armhole shows more of the side and bra strap; a shaped armhole, like the darted neckline on the Perfect Scoopneck Tank Top, sits closer to the body.
What sleeve length works best for a fuller upper arm?
Elbow-length and three-quarter sleeves give the most room, because the sleeve widens as it goes rather than tapering right at the shoulder seam the way a set-in short sleeve does.
Does the fabric make a difference in the arms?
Yes. A knit with stated stretch, like a cotton/poly interlock, moves with the arm through the day. A woven top in the same size has no give, so it will feel tighter at the same measurement.
Should I size up for a sleeveless top?
If you're between sizes and the top is sleeveless or short-sleeve, size up. It gives you more room at the armhole with no real trade-off at the hem.