Typical armor of the most nomadic warriors was the hatangu-degel: armour made of soft materials, usually leather. Looks like this:
All of them were armed with composite bow. (Usually nomads started to train at the age of 4-5 years)
All light horsemen had lasso, as their melee weapons they typically used axes, and had a knife hidden under the case for bow.
Heavy horsemen had sabre or broadsword (yes, they were used), a lance with hook to pull enemies of their horses and saadak. In terms of armour they used lamellar, laminar or mixed (formed by both laminar and lamellar scales) armour, called hudesutu huyag. Also to increase the defense they could wear several layers of armour.