The Ergo-Rider seat provides ergonomic comfort and support. A hybrid of round seat and saddle seat, the Ergo-Rider combines the versatility of the former and playability of the latter. The front cutaway allows completely unimpeded thigh movement, even during the most rapid double bass patterns. In addition, two gentle seat indentations and an added 20mm upper insert of soft foam encourage the right posture while providing total playing comfort.
The HT741 has a super stable 4-leg tripod with a backrest. The backrest unit on HT741 is both height adjustable and tiltable so it gives you the support you need, no matter how you sit.
 "Tama Drums - Tama HT741 Ergo-Rider Drum Throne w/Backrest")