Rash Guard Size Chart (Fitted & Loose Fit)
A rash guard is sized by chest, but the bigger decision is fitted versus loose. A compression (fitted) rash guard should hug the body to prevent chafing; a loose one wears like a surf tee. Pick the fit intent first, then the size.
Rash Guard Size Chart (to-fit chest, inches)
| Size | Chest | Body length |
|---|---|---|
| XS | 32–34 | 26" |
| S | 35–37 | 27" |
| M | 38–40 | 28" |
| L | 41–43 | 29" |
| XL | 44–46 | 30" |
| XXL | 47–49 | 31" |
Notes
Fitted rash guards should feel like a second skin. The whole point of a compression rash guard is to stop board rub and sun exposure, so it needs to be snug with no loose fabric. If you're between sizes and want the fitted look, size down; a baggy 'fitted' rash guard defeats its purpose.
Loose fit = your normal tee size. A relaxed rash guard worn casually or over a swimsuit fits like a t-shirt — buy your usual size. Only the compression styles run intentionally tight.
Check the length for coverage. Body length matters for sun and chafe protection, especially when paddling. A longer body stays tucked; a short one rides up. Compare the listed length to a tee you own.
FAQs
Should a rash guard be tight or loose?
A compression rash guard should be tight to prevent chafing and stay put in the water; a casual one can be loose like a tee. Decide which you want first — it changes whether you buy true to size or size down.
Do rash guards run small?
Fitted/compression rash guards are cut small on purpose, so they can feel a size tight. That's intended. Loose-fit styles run true to your normal t-shirt size.
How do I measure for a rash guard?
Measure your chest at the fullest point and match the chart. For a compression fit, choose the size where your chest is at the top of the range or size down; for a loose fit, use your regular tee size.
Need this on your store?
Tailor Size Guide ships pre-built size charts for Shopify.