We offer premium quality Blackbelts for our Senseis. These are 100% cotton in both 1.5” and 2” wide options. Our 100% Silk Blackbelts are only the finest available. This is the ultimate Blackbelt you will need no other. 1 3/4" Premium 100% Cotton Renshi Belt - The Renshi Blackbelt is for our master level Senseis. Half red (representing Mastery) and half white (representing Purity) finished on the opposite side in traditional Black. This is truly a Masters Belt, and one to cherish always. Kyoshi belt are red and white blocks, available in 1 1/2" and 1 3/4".