1. Skiing is generally an activity that only whites with expendable income (upper middle class and upper class) do.
2. People with expendable income generally take better care of themselves and intermarry with similar people who also have good genetics and better looks.
3. Good looking women go skiing because the lower you go down the economic structure, women generally look worse and don't take care of themselves

Takes athletic person to ski so you know they're fit and generally healthy.

Outdoor type which may also play into your interest.

Plus I think it's a white people thing since there's no snow in Africa.

Ticks a few boxes

Seeing as it's one of the most concealing attire for recreational sports, I'd bet it's your imagination making them sexy.

You should see today's female golf attire.

If they get injured they can't get away from you

Most women who ski are already attractive. They also choose winter attire that is warm, but snug on their legs, while padded around the chest due to sweaters and jackets.

They are all attractive and wealthy. Do you know how much it cost to go skiing now? The prices after COVID got ridiculous, because during the lock downs in the USA, "outdoor activities" were still fine, which meant everyone started skiing and snowboarding.

Tights