Find Your Fit
Our UPF 50+ performance shirts are cut with a relaxed, athletic fit designed to layer easily over a rash guard or swimsuit while still moving with you. If you're between sizes, we generally recommend sizing up for a more relaxed fit, or sizing down for a closer, more athletic fit.
| Size | Chest (in) | Chest (cm) | Body Length (in) | Sleeve Length (in) |
|---|---|---|---|---|
| S | 36–38 | 91–97 | 27 | 33.5 |
| M | 39–41 | 99–104 | 28 | 34.5 |
| L | 42–44 | 107–112 | 29 | 35.5 |
| XL | 45–47 | 114–119 | 30 | 36.5 |
Note: These are standard performance-apparel measurements provided as a starting reference. Once we have final measurements from our production run, this chart will be updated with RAYPELLA-specific numbers.
How to Measure
ChestMeasure around the fullest part of your chest, keeping the tape level under your arms.
Body LengthMeasure from the highest point of the shoulder straight down to the bottom hem.
Sleeve LengthMeasure from the center back of the neck, across the shoulder, and down to the wrist.
Still Not Sure?
If you're between two sizes or unsure which fit is right for you, reach out before ordering — we're happy to help you get it right the first time. Free size exchanges are available on all orders.