They are also very strong

Single-Colored Weaving - Extra-Thick

Option recommended by Minosaka's craftsmen for this model

All our Zekken have a double layer

zinc/aluminum alloy (duralumin)

Knee Support - One size fits all jinbei samue They are also very strongKnee Support Free Size Made in Japan Color: Black Size: One size fits all "One size fits all" knee support with an adjustable, elastic tie of velcro tape. Padded with relatively rigid foam to protect your knees and very comfortable to wear, allowing suwariwaza (movements made in a kneeling position) thanks to the opening at the back. Usable for practitioners of Aikido, Iaido, Judo, or Karate. Sold as a single unit or as a pair.