Building a Women's Wetsuit Brand in Europe: What Fifty Bodies Taught Me

I expected the hips to be the problem.

Every conversation I had before starting Selkie pointed there. Women talking about wetsuits talk about hips, the suits that won't pull up, the ones that fit on the bottom and gap at the waist, the permanent negotiation between what the suit was built for and what an actual woman's body does. I designed the whole first phase of fitting sessions around it. Fifty women, a measuring tape, a set of prototype panels, and I was ready to come back with a mountain of data about hips.

The hips were fine.

It was the shoulders and the knees that were breaking everything.

What fitting fifty women for a European women's wetsuit actually looks like

The fitting marathon, which is what I have started calling it in my head, is not glamorous. It is a lot of women in various states of wetsuit, a lot of notes, and a lot of moments where I ask someone to reach forward or bend their knee and watch the fabric do something it absolutely should not be doing. The point is not just to see where the suits fail, but to understand why, and whether the why is consistent enough across different bodies to build a solution into the pattern rather than treating it as an individual problem to manage. Fifty women gives you something you cannot get from guesswork or industry habit. It gives you data, and when you cross-check that data statistically, patterns emerge that would otherwise stay invisible. The shoulder problem was one of them. I kept seeing it and kept assuming it was specific to certain body types, until the numbers made clear that it wasn't. It was almost everyone, in different ways, for the same underlying reason.

Why women's scuba wetsuit shoulders fail, and what nobody did about it

The shoulder is where reach happens. Every time you extend your arms forward, the suit has to have somewhere to go, and in most women's wetsuits, it doesn't. The panel covering the shoulder is already holding the chest or managing the back, and when you ask it to accommodate a full reach on top of that it simply pulls, or compresses, or both. You spend the dive slightly more constrained than you should be and file it away as another thing to manage, which is a very long list by the time most of us have been diving for a few years.

The knees surprised me more. A wetsuit knee needs to flex fully and repeatedly without the suit fighting back, and on a significant number of the women I fitted, it wasn't quite doing that. Not dramatically, just enough to be there, dive after dive, a low-level resistance that you would absolutely get used to and absolutely shouldn't have to.

What this means for how Selkie is being built

I am on my way to the factory in the coming weeks with adjustment maps and measurement data, the specific places where the current designs are failing and what the pattern needs to do differently to fix them. The manufacturer knows what they are doing, and my job is to arrive with evidence rather than instinct, which is what fifty women and several weeks of cross-checking has given me.

The hips are fine. The shoulders and knees are not, and I am glad I went looking before we cut a single production suit.

Selkie is being built now. If you want to follow the process and be first to know when the suits are ready, the founding list is where it starts.