I too have been diagnosed with a vitamin D deficiency. Can’t figure out why, though. Because I take a calcium plus vitamin D supplement daily and drink vitamin D fortified milk. Plus I live in a sunny climate. Anyhoo, the docs tend to suggest that people with this problem spend 15 minutes per day out in the sun, but you still have to be careful, because if you’re like me, you will start to burn and tan pretty quickly, and then you have to get right back out of the sun and cover up.
So @Samant I think your outfit is fine, but just make sure that after that amount of time that you actually do cover up if you’re going to spend more time in the sun. I usually wear a broad brimmed hat and a long sleeved blouse that is made of light weight material, so that I can stay cool and a pair of very free flowing mid length, light weight pants, plus sunscreen on every exposed part of my skin.
So for the 15 minute period you could wear something like this or this outfit and then after that, you might want to change into something like this top or this top