I have Raynaud's Syndrome and am looking for mittens that will keep my fingers warm in 20 - 35 degree, windy weather conditions. Will these mittens do that?

Tech Specs:

Material:

[Shell] nylon; [Palm] BillyGoat (goatskin leather) 

Insulation:

150g Synthetic 

Waterproofing:

Hipora 

Removable Liner:

No 

Closure:

Hook-and-loop 

Gauntlet:

Yes 

Goggle Wipe:

No 

Nose Wipe:

Yes 

Weight:

6oz (162g) 

Recommended Use:

Skiing, snowboarding 

Manufacturer Warranty:

Lifetime