Tyvek suit

Hi Guys,
A friend of mine works at mine sites and he had a pack of tyvek suit protective clothing.
I was thinking this would be super light, breathable and provide another layer in cold conditions.
Has anyone tried this out?
A friend of mine works at mine sites and he had a pack of tyvek suit protective clothing.
I was thinking this would be super light, breathable and provide another layer in cold conditions.
Has anyone tried this out?