But take comfort in the fact that Kim, Kourtney, and Khloe all wear hair extensions. 크리스 제너는 좋은 유전자를 가졌지만 그다지 좋은 유전자는 아닙니다. However, probably due to the fact that its damn near impossible for new moms to spend hours on end in the salon chair, Kourtney recently stepped out sans extensions.