"Kaispa (aka Hair-Parters or Sioux) society is a well known Grass dance ritual of the Northern Plains practiced by the Blackfoot people under the name ka'espai and flourished among all three tribal divisions: Piegan, Kainai & Siksika. It was acquired from neighbouring tribes. While some informants believe the first forms of it came from the Crow and Assiniboine, all are positive that its formal installation came from the Gros Ventre, about thirty years ago. Even at the present day, a Blackfoot visiting the Gros Ventre generally brings back some new point of procedure. Quite recently the Piegan have helped introduce the ceremony to the Flathead". (Wissler, "Societies & Dance Associations Of the Blackfoot Indians", p.451). The insignias of Kaispa society included: (i) bi-colored short shirt; (ii) 7 feather tail belts (bustles); (iii) ermine split horn bonnet with or without a short cloth trailer to which 1 or more rows of ermine tubes were attached; (iv) 2 sabers or swords; (v) dancing whips; (vi) tomahawk; (vii) drum.