Best Methods for Drying Boots in the Backcountry
In field conditions where boots become saturated due to water crossings, rain, or unexpected immersion, what proven strategies exist for effectively drying them without access to power or a heat source? Specifically, I am interested in methods that balance speed, preservation of boot materials (particularly waterproof membranes and adhesives), and minimal additional carried weight.
I have tried removing insoles and stuffing boots with spare clothing, but the process is slow and compromises the warmth of my sleep system. Some hikers advocate using dedicated camp shoes and wearing wet boots the next day, but I am curious if there are solutions that would permit drying overnight in damp, cold conditions. Has anyone found effective techniques with materials readily available on multi-day trips? Are there risks to using heated rocks or bringing chemical heat packs, and what impacts might these have on boot longevity?
Empirical experiences and references to controlled studies are welcome.