The tallit has special twined, known as Tzitzit, attached to its four corners. The Tallit can be made of any materials except a mixture of wool and linen. Usually, the mixture of wool and linen (shatnez) is specifically forbidden by the Torah. The Talit is a very popular Bar Mitzvahs gift. It is also customarily presented to a groom before marriage as part of the dowry. The groom traditionally wears a Tallit under the Chuppah.
There are two types of Tallit. The one that is worn during prayer services is called a Tallit Gadol (a large Tallit) and the Tallit Katan (Small Tallit) which is worn as an undergarment. Both of them have tzitzit.The Torah commands us to wear Tzitzit on the four corners of our garments. Many Orthodox Jewish men wear the Tallit Katan to fulfil this commandment.
Donning a Tallit:
Stretch the tallit before you, holding it with both hands, and recite this blessing:
Barukh atah Adonai, Eloheinu, melekh ha'olam
Asher kidishanu b'mitz'votav v'tzivanu l'hit'ateif ba-tzitzit.
Blessed are you, Lord, our God, sovereign of the universe
Who has sanctified us with His commandments and commanded us to wrap ourselves in the tzitzit.