They're cumulative, apparently, so get nice and warm.

What is Inagin going to do with two Winter Banes?

I'm curious why people need the Summer Bane runes, when they can just remove their blankets for a similar effect.

Even wandering naked in Skarch, I still had 80% slowdown and kept getting slickness. So it would have a use.

Weather proof is out now too, so that you don't have to worry about the weather at all as a demi, if you have spare weight, essence. Though the three new abilities are extremely hefty in cost.

I'm really more curious why you'd ever need the anti-cold runes, I can see a definite use for the anti-hot ones as the cold drink consumable is.... problematic from what I hear.

I suppose it's convenience as well. Less clothes to have to switch around with, and you don't have to worry about decay.

Because I love the design of the pocketwatch:

Burnished gold has been used to fashion this intricate pocketwatch, dull with age yet retaining a stately, refreshing gleam to its aureate surface. The outer shell of the pocketwatch is smooth and unadorned, save for a long, fine chain of golden links that hangs from one side. The inner face, however, is decorated with seven distinct hands moving about at varying speeds, some revolving madly while others seem to remain perfectly still. The white facing is adorned with numerous incomprehensible glyphs and sigils, all caught behind a thin layer of translucent, glimmering crystal.

Obviously the watch doesn't tell time. (Nor does it tell me the truth of anything.)

While I would love for it to have some message about the sprinkle of salt/sulfur aside from the normal one, I still love it.

you can program it i guess, if you want to spend some extra credits.