Am the same Dave with my Neoprene wellies. Even wearing them for half an hour my socks are ringing wet with sweat. Am going back to the old rubber type.I see they advertise neoprene socks in that link Steve,....it reminded me that I was going to mention on a new thread just how much that material makes me sweat.
I've bought a pair of neoprene chest waders along with some neoprene lined wellies this year and both pairs leave socks and strides soaking after walking a few hundred yards. You don't realise it until you take them off back at the motor,..unless they're leaking or I've got some weird biological ailment!
Back to the subject of gloves. It has to be bloody freezing before i put a pair on. But Ive had a pair of TFG Neoprene for years, the one's where the fingers fold back. Used them in Norway last year and kept my hand nice and warm even when wet. Think they only cost a fiver in their sale.