Review on Optimized Elasticity: Xero Shoes Men's HFS Running Shoes - Zero Drop, Ultra-Lightweight & Enhanced Barefoot Sensation by Alex Prince

I have had this shoe model for a few months now. I usually wear them once or twice a week when I'm away from home and on business. Beyond what the designer wrote. Without socks: 1. With or without socks. If you take out the insole, the shoe fits "true to size" and has a zero fall 2. If you take the insoles out of both shoes and put them upside down in the opposite shoe (example: left insole in right shoe upside down), the shoe will fit snugly like size 3. If you cut the insole further to fit your foot, you will ultimately make the heel cup of the insole smaller, giving your foot more room in the forefoot of the shoe. Otherwise, if you leave the insole as it came from the factory, the shoe will have additional cushioning and a slight heel lift forefoot through the heel cup of the insole.Personally speaking. After wearing shoes with inverted insoles, I trimmed the insole more to the shape of your foot to keep the shoe as it might have come from the factory. With socks, the overall tightness of the shoe will depend on whether you leave that how tight you lace your boot and how you can lace your boot. (Notes: 1. If you don't already know, a simple internet search gives detailed information on various lacing patterns. 2. Sand the bottom of the insole before inserting the top into the shoes to help the shoes soften and give you a massage the feet. )