Black synthetic "Ovegrip" for one sword - extends the useful the life of your original leather or cord, improves the grip, slightly reduces impact vibrations without sacrificing blade feel.
One roll is sufficient for the majority of sword grips - tested on Regenyei Standard Feder, Black Armory Feders and Longswords by Berbekucz.
(Be careful, they might be a bit short for extra long grips, like some feders, montantes, etc. - you may need 2 rolls).
This grip can also be used advantageously on Viking shield grip, on your Roman scutum, your bucklers, daggers, viking and battle axes ...