Will be diving a new Dui TLS 350 with a Dui Polartec Powerstretch undergarment, 7mm hendersen gloves, and a 7mm Hendersen Gold Core hood. What would be a good base layer for this set up? Looked at some of the polypropylene on ebay but a little skeptical about the off brands. Water temps in the 48 degree range and Inget cold pretty easily.