Dove in and Bought my First Welder

I bought a pair of workboots with a vented upper, the part under the laces. Weld sparks went through like there was nothing there. My workboots since then are pretty much submersible.
Burn the occasional lace but thats it. Slag burns are painful and take forever to heal.

Great advice, and great deal on the welder.
I pretty much always wear tennis shoes, and one day I was torching off some rivet heads in a 4x4 crossmember to take the trans and transfer case out.
One of those bright white hot liquid rivet heads landed dead center of the laces of my shoe and went right on through the shoe tongue the sock like it was nothing.
I kicked the shoe off and kept going, but that blob cooked itself right into the top of my foot probably a good 1/4 deep.
Paid for that one for months.:D