So I'd been playin breath of the wild a ton. I was struggling a little when it came to cold weather. I got the chest piece for cold resistance, but I didnt want to always have cold res food.
I recently got the

Warning: Spoilers inside!

snow boots

which helps walking in snow but it doesnt add cold res (odd)
I had managed to get by a little with a torch, but you cant run and if it goes out while youre exploring the cold you'll have a hard time restarting it with out another fire source.

I did find a solution just a few moments ago and wanted to let people here/playing know if they are struggling too.
That solution is to get a

Warning: Spoilers inside!

fire rod

You dont have to have it drawn and as long as its simply your main weapon the heat from it plus the chest piece will be more than enough to keep ya warm

 

I don't know how it is called in english, in french it's Elimith, this is the village you go to get the basic runes, there is a shop where you can buy cloth to have cold resistance.

 

You can get a headband thing in the city of chicks

 

Didn't know he was talking about extreme cold, "normal cold" the doublet at hateno is enought, for high cold like in guerudo at night and snow mountains, you have to head toward Rito village indeed.

 

oh yeah they sell that but you can get that for FREE

 

shhhh, i found them now, but i tell ya this was definitely a useful trick before i got to that point