Bests & Worsts Reviews from Amazon

Ordered a beige pair in my size and it fit like a dream. Ordered a new pair in black... didnt try them on (i thought they would fit fine, same size, just different color) till after return window... and they dont fit. The only difference i see is The pair that fits was made in Bangladesh. The pair that doesnt was made in Vietnam. Is there a way to figure out which pair you get? I am pretty upset with Amazon not having a standard size within their own brand.