STYLE HUB
Size Guide
Every style comes in S, M, L, XL and XXL. Measurements below are for the garment, in inches.
Last updated: October 23, 2026
How to measure
Use a soft tape and measure against your body, or lay a garment you already own flat and measure it. Keep the tape level and snug — not tight.
- Chest — around the fullest part of the chest, under the arms, with the tape level across the back.
- Waist — around your natural waistline, at the narrowest point above the hip.
- Hip — around the widest part of the seat, feet together.
- Sleeve — from the shoulder seam to the cuff, with the arm relaxed at your side.
- Inseam — from the crotch seam to the hem of a pair of trousers that fits you well.
Shirts & polo shirts
| Size | Chest (in) | Waist (in) | Sleeve (in) | Body length (in) |
|---|---|---|---|---|
| S | 36–38 | 29–31 | 33 | 28 |
| M | 38–40 | 31–33 | 34 | 29 |
| L | 41–43 | 34–36 | 35 | 30 |
| XL | 44–46 | 37–39 | 36 | 31 |
| XXL | 47–49 | 40–42 | 37 | 32 |
Jeans & joggers
| Size | Waist (in) | Hip (in) | Inseam (in) |
|---|---|---|---|
| S | 28–30 | 36–38 | 30 |
| M | 31–33 | 39–41 | 30 |
| L | 34–36 | 42–44 | 31 |
| XL | 38–40 | 45–47 | 31 |
| XXL | 42–44 | 48–50 | 32 |
Jackets
| Size | Chest (in) | Shoulder (in) | Sleeve (in) | Body length (in) |
|---|---|---|---|---|
| S | 36–38 | 17.5 | 33 | 26 |
| M | 38–40 | 18.5 | 34 | 27 |
| L | 41–43 | 19.5 | 35 | 28 |
| XL | 44–46 | 20.5 | 36 | 29 |
| XXL | 47–49 | 21.5 | 37 | 30 |
Fit notes
Our shirts, polos, jeans, joggers and jackets are cut for a regular, true-to-size fit, unless the style name says Slim or Skinny — those are cut closer to the body.
Between sizes, or prefer a relaxed fit? Size up. If the size you ordered is not right, you have 30 days to exchange or return it — see Returns & Refunds.
Still unsure?
Email support@probablyss.online with the style you are considering and a measurement from a garment that fits you well, and we will advise on the closest size.