I’ve used these for 2 season and they’re great:
soliteboots.com/products/4-3-wind-paddle-split-mitt?_pos=6&_sid=e0787f359&_ss=rI’ve used the 4/3 in the coldest conditions where riding becomes not possible because Parawings & boards just become covered in ice. My hands stay warm. I attribute this to the more loose fit and stretchy material.
Not sure how cold you’re going but they have a 3/2 version too with 5 fingers.
Pre-curved is the most important part for me. Cuts down on hand fatigue like crazy. I’m a back line guy using BRM so stow is pretty easy.
if you want to see in action:
4/3:
3/2:
-O5aF1