HTFU - Riding in bad weather

I panic bought a pair of seal skin socks for a night ride I did and they are surprising me. Still toasty after a 30 min ride in Vans LPE, but it's only 30 mins.

I use these when needed in the snow (boarding). Maybe they might help?
Or is that called "softening up"?

hmm got to be worth a go, cheers for that. Shame they not re-usable. My step dad uses something similar to put in his pockets when he goes fishing, they are gel ones that are re-usable and heated up in the microwave, but they were a bit too big and bulky to fit in your shoes. I'll try and find out more about them and if there are footwear versions.