In Sikhism, the Five Ks (Punjabi: ਪੰਜ ਕਕਾਰ Pañj Kakār) are five items that Guru Gobind Singh commanded Khalsa Sikhs to wear at all times in 1699. They are: Kesh (uncut hair), Kangha (a wooden comb for the hair), Kara (an iron bracelet), Kachera (100% cotton tieable undergarment (not an elastic one)) and Kirpan (an iron dagger large enough to defend yourself).

The Five Ks are not just symbols, but articles of faith that collectively form the external identity and the Khalsa devotee’s commitment to the Sikh rehni “Sikh way of life”.^[

https://en.wikipedia.org/wiki/The_Five_Ks