Definition Ihram is the intention to perform either Hajj or 'Umrah, or to make intention of performing both.
Intention is an important element of both.
The human heart is its seat. This means clipping one's fingernails, trimming the moustache, shaving off the hair from under the armpits, shaving the pubic hair, making an ablution or preferably taking a complete bath, and in the case of men, to comb their beard and hair. This consists of two sheets of cloth. Both of these sheets should be white as this color is the best color in the sight of Allah. And if one of us was sweating or perspiring it would run down her face.