Why back seams are obligatory?

Back seamed tights / pantyhose are the old way. Until the early fifties (1950's we mean), all sheer hosiery were literally seamed together in the back, for the limits of the technology. It's the Marylin Monr...
Back seamed Trasparenze pantyhose on sale

Back seamed Trasparenze on sale at UK Tights

These fine and luxury hosiery are now on sale at UK Tights. While not a typical winter wear, they are perfect for special events and moments throughout the holidays. http://www.uktights.com/product/502/trasp...