any suggestions for survival clothing ?

Guess that depends on where you are or where you are heading...What are are you in? What type of weather?

I agree it will have to go along with where you are going. But some starters are long pants and sleeves - which not only protects from whether but from bugs as well. Good comfortable shoes - chances are you are going to spend a lot of time on your feet at some point. Warm socks(a few pair) and hat- Our two natural heat releases are our feet and our head so when dealing with cold whether makes sure you have something adequate to cover both of these areas.

Long pants
Long sleeves
Hat
socks
comfy shoes

German Army Tanksuit and Casual Combat Trousers which are available in almost many places are the best fitting survival clothes.

Any sort of flexible track suits will do. Do not go for heavy clothings, if they are of less weight , then it will be more advantageous , in a wilderness trip.