Wetsuit size finder

Enter your height and weight and get your swim wetsuit size in Orca, Zone3, HUUB and Blueseventy - side by side, from the brands' own charts.

Measure around the widest point

Matched on weight first, then height - that's how the brands themselves say to choose. If you sit between two sizes, take the bigger one. Charts transcribed from official brand size guides, July 2026 - always double-check against the chart for the specific suit model before buying.

Why your wetsuit size is different in every brand

A "Medium" is not a standard. Orca sizes its suits by number (4 up to 11), HUUB and Zone3 use letters with tall and stocky variants, and Blueseventy runs its own lettering again. The height and weight ranges behind those labels genuinely differ - the same 76 kg, 180 cm swimmer is a 7 in Orca, an M or MT in HUUB, and an M or MT in Zone3 depending on build. Buying your "usual size" across brands is how suits end up back in the post.

How to choose when you're between sizes

  • Weight beats height. HUUB and Zone3 both say it outright: if your measurements put you in two sizes, follow your weight.
  • When in doubt, size up. A slightly roomy suit still swims well. A too-tight suit restricts breathing and shoulder rotation, and that ruins a swim.
  • Tall and light? Use the tall variants. ST, SMT and MT cuts exist for exactly that build.
  • It loosens in the water. A suit should feel noticeably snug on dry land.

The size charts

These are the official brand charts this tool matches against - men's and women's, metric.

FAQs

Are wetsuit sizes the same across brands?

No - and that's the point of this tool. Each brand cuts to its own height and weight ranges, and the same label (M, L) means a different body in each. Check per brand, every time.

Should I size up or down if I'm between sizes?

Up. The major swim wetsuit brands advise taking the larger size when you fall into two, and weighting your body weight over your height when they disagree.

How tight should a swim wetsuit be?

Snug with no loose folds at the lower back or shoulders, but you should still be able to breathe deeply and swing your arms. Tighter on land than it will feel in the water.

What about chest measurement?

Orca and Zone3 publish chest ranges and it's a useful tiebreak - broad-chested athletes often need one size up from what weight alone suggests. HUUB and Blueseventy size on height and weight only.