[m463]

I recently bought a wetsuit and it had GIANT zippers. I love levi's button fly jeans but giant zippers like that would be kind of cool too.

[mellavora]

wetsuit zipper may have to pull some pretty stretchy rubber closed (assuming a less than ideal fit), may also be subject to stress from a 25-30kg harness, and also deal with sand/mud/grit in the teeth.

There are strong functional drivers for large zippers on wetsuits. It isn't just fashion.