Footwear with retention system

A footwear with retention system, the footwear comprising an upper delimiting an inner space for a foot of a user, wherein the retention system is positioned at least partially in the inner space of said upper and comprises:

• a plurality of constraint elements which are at least partially movable there between and designed to pass from a loose condition to a tightened condition with respect to the foot of the user and vice versa;
• a first constraint element of the plurality of constraint elements designed to be positioned at a top instep area of the foot of the user;
• a cord slidably coupled to the plurality of constraint elements;
• tensioning means connected to a first portion of the cord and designed to be handled by the user for bringing the cord into a tensioned condition in order to bring the plurality of constraint elements in the tightened condition;
• locking means for locking the cord in tensioned condition;
• loosening means connected to at least one second portion of the cord and designed to be handled by the user for bringing the constraint elements in the loose condition, the loosening means comprising a band;
• wherein each constraint element of the plurality of constraint elements comprises a body and a tape secured to the body, the tape forming one or more eyelets for passage of the cord;
• and
• wherein the band of the loosening means is fastened to one of the tape of the first constraint element.