I'm also wearing another pair of super comfy, backless shoes. I've had them for a few years and don't remember what I thrifted them for, but I know it had to be between $2-$8. These are brown and I have a pair in black that are very nearly identical, but are a different brand.
Tan Jeans $3 Lee
Baby Blue Short Sleeved Sweater
Tan Silk Jacket $4.99 Talbots
Purse $5.99 Liz Claiborne
Shoes - Aerosoles