I can deal with not showering during longish hikes. But still sensitive to nikwax. That’s the smell I associate with hikers. Not body odour.

In cold climes, you don’t sweat as much. Which is why it’s important to hydrate a lot. And you pee it out. You can only induce sweating by increasing body heat and spices do a great job. The importance of sweating can’t be underestimated. Sweating is the trigger that encourages us to hydrate.