Spidi Rider Undersuit
Created, developed and used by MotoGP and SBK riders. Made of Toray Field Sensor network with high breathability. Slips right inside the suit without tying and binding movements. Maximum comfort in the neck, wrists and ankles. Stretch inserts on groin, knees, shoulders and hips. The most advanced technology for track use.
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Below is the link to sizing information provided by Spidi