Sidi's dial system rotor has been used in venous-constriction cuffs during spaceflight to counteract the effects of microgravity on the human body. 

Crew-8 is the eighth operational astronaut mission SpaceX has carried out for NASA to the International Space Station. The four crew members are participating in Expedition 71 to conduct a wide range of experiments for six months. Investigations conducted during Expedition 71 include examining brain organoids to understand neurodegenerative disorders, monitoring how body fluids shift during spaceflight, and scrutinizing the effects of UV radiation and microgravity on plant growth.

Sidi Sport joins the NASA expedition with its dial system, used as a closure system for venous-constriction cuffs worn by astronauts on their thighs. Designed to counteract the effects of microgravity on the human body, their use is intended to trap fluids in the legs and thereby reduce the fluid volume in the head, which may prevent potential changes to eye structure and vision. 

To allow the crew to adjust and close the cuffs, Sidi's dial system was designed to be a reliable, efficient system and compatible with the levels of technical readiness required for spaceflight operations.

The world's first dial system was invented by Sidi in 1988 as a way to engineer a higher tension – micro-adjustable closure system on cycling and motorcycling footwear. From that day, our dial system has constantly evolved to meet the extreme forces applied in racing. Composed of a high-intensity resin rotor with a Dyneema® cable, it allows for micrometric and yet differentiated closure, for absolute adaptability to the circumference of the body concerned.

For Davide Rossetti, CEO of Sidi Sport, "It is absolutely exciting that Sidi closure systems have been chosen by NASA for a space mission. In the '90s, by inventing the rotors, Sidi Sport changed the world of sports footwear and has not stopped improving them since. Our contribution to Expedition 71 represents a powerful incentive to improve further, to reach new milestones, and to support athletes in every challenge with our products."