This important piece of equipment for the player is hand made with carefully selected and inspected aniline leather. They are fully lined with thick red aniline leather for a better security, safety and protection to withstand and diffuse the pressure from the strongest bump or ride off of the strongest shot.
The insoles and upper are united with the Good Year system, sewn with reinforced nylon thread which prevent the boots of un-sewn and gives the boots better resistance from rubbing.

Their YKK detachable zips are highly resistant and durable. They also have adjustable cover zips in aniline leather with reinforced Velcro.
http://www.e-cuestre.com/contentsLang/EN/detailsRopa/4889/Bauti_Black_Polo_Boots_w/_zipper.html