Costs More But You Get More with this K2 - Scubapro Extreme undersuit. Switched from a 4 mm drysuit to a Scubapro Evertech drysuit and needed to make up the insulation. Started with Seac Unifleece but not enough warmth in 50-60 degree water, so I decided to go with this. And because it is padded up like a Batman body suit it’s more comfortable at depth when squeezed. I will take this snowboarding in Tahoe this winter too, to maximize the spend.
DiveCat. has good easy-to-shop site and their rewards/loyalty program is great.