What's best to wear underneath a floatation suit?

I was just wondering what is most comfortable to wear under the suit??..

Weather depending... if it's cold- thermals.... otherwise I tend to put long john trousers and a long sleeve top,heavier than t shirt, but lighter than a jumper.

I have a two piece suit and unless the weather is freezing I usually only wear the jacket and a pair of waterproof bottoms if needed. I find that wearing the flotation suit bottoms can sometimes be too warm, especially if there is a long walk involved. The waterproofs will keep the wind out as well. I would usually wear tracksuit bottoms with a t-shirt, a jumper and sometimes a set of thermals. It all depends how cold and windy it is!

I was thinking track suit bottoms as they wouldn't hinder mobility too much!..wouldn't be the lightest on the feet now!!..I'm getting one this weekend. I hear its better to carry it to the mark and them put it on rather than doing any long hikes whilst wearing it. I'm sure I'll learn quick enough!

Tracksuit for sure!!