Around 2 billion disposable chemical pack warmers are used each year, leading to significant trash in the landfill and pollution in our ecosystems. Not only are they wasteful to use, but can be hazardous as well. Most chemical packs are NOT designed to be exposed directly to your skin for long periods of time and can tear resulting in a shoe full of reacting chemicals!

The other primary alternative is battery heated socks, which aren't much better. The batteries generate toxic e-waste if not disposed of properly and most companies recommend replacing the batteries every other year for optimal performance! Not to mention that battery heated socks are just a hassle to deal with. They require the user to charge them before use and they never seem to last more than a few hours.

Both chemical packs and battery heated socks have been known to cause severe burns to the users!

ColdSlayer socks solve these problems by harnessing the heat your body already produces and moving that heat from your legs to your toes with our integrated fluid transfer system - all in a high quality, durable, and re-useable sock.