Name; Gel cushion! Material; TPE! The difference between the third generation and the fourth generation: the third generation has no intermediate stress, and the back of the bearing circle is ordinary plane without adding exhaust Cao design! Our new fourth generation has a load-bearing circle on the front, which has a good weighing effect according to the mechanical design of human body and will not collapse! Add exhaust Cao design on the back! Make air circulation better! Reduce the stuffy feeling! (The homepage is a video. You can have a look.) external sandwich net cover! Note (TPE gel is not the same as sponge! He himself will not water/sweat absorption) so we match the sandwich net cover! Make up for the shortage of gel cushion! It plays a comfortable and beautiful role in absorbing sweat! (Net cover is available in gray and black colors). Why not use net cover for cloth cover: The main reason for choosing net cover is that it does not affect the ventilation and heat dissipation of Cao's design on the bottom of the cushion, and it feels very thick and looks very textured! The bottom surface is designed with single layer non-slip cloth! Put it on the seat without fixing it to prevent skid!! Cloth cover ventilation and heat dissipation effect intersection! It feels thin by hand, and the use effect is not added!