A new boot is built to fit, not to feel broken in. The leather is firm because it has not yet learned your foot, and that is exactly as it should be. A boot that feels soft on the first day will not hold its shape on the thousandth.
Start slow
Wear them an hour or two around the house, on a floor that will not scuff the sole, and let the leather flex with each step. The boot bends where your foot bends, and it needs your foot to teach it where that is. A simple first week:
- Days one to three: an hour or two indoors at a time
- Days four to seven: add time as the leather softens
- After that: short errands, then longer days
Mind the fit
Wear the socks you mean to wear with them, and give the fit an honest read. A cowboy boot should hold the heel snug and leave the toes room. A little heel slip at first is normal, and it settles as the sole breaks down.
Skip the shortcuts
Soaking, baking, or forcing the bend will break a boot down faster than it breaks it in, and it shortens the life of the boot. In particular, leave these alone:
- Soaking the leather in water
- Direct heat from a dryer or stove
- Bending or rolling the boot by hand
Patience is the whole method. The boot becomes yours by being worn, not by being forced.
The payoff
Within a few weeks the vamp creases where it should and the heel sits where it belongs. Cared for from there, a good pair will outlast the breaking in by many years. If you are unsure about the fit to begin with, that is what the bench is for.