Take care of your boots and they'll take care of you
This is one of the best kits you could buy to take care of your boots. I use it on my work boots, play boots, family's boots, and it works for all of them. The leather looks better, lasts longer, stays drier (which means warmer).
As a professional land surveyor I put my boots through all the worst conditions - extreme heat, cold, mud, water, road chemicals, silica, lye, gravel, thorns, so typically boots only last about 6mo if lucky. Since using Cobbler's Choice kit (the brush, cleaner, conditioner, waterproofer) I've been able to make my Rocky Bearclaw 3Ds last 4 years and counting! I've recommended this kit to all my coworkers and they are now loyal customers and believers!