85% polyester 15% spandex
Design：Keep your haunch from sweating, Keep enjoying those miles, burn away the calories, and bring back the cycling fun. No matter how long you ride, your haunch won't ache, making you enjoy the trip. High-density foam& shock-resistant and non-ship silicone: Make cushion compressive resistance enhanced, sedentary deformation.
Gel is good, not too squishy and not too hard. Velcro system at bottom holds the saddle in place very well… as opposed to the other rope tightened ones… good materials used, good value.