The purpose of tallit is to help remind man of the fulfilment of the precepts, and the departure of the children of Israel from slavery in Egypt.
It can also be taken as a symbol of the heaven that surrounds the person, and protects and covers him at all times, just as God does.
Both the talit and the tzitzit are visible reminders of the Divine teachings and the need to promote holiness in private and national life. One can buy tallit from https://jewish.shop.
Structure of tallit
It is made of silk or wool and it is usual to have a series of black or blue stripes with fringes at the edges; four long tzitziot are added to the sides, and these ‘fringes’ include the eight threads with their five knots, made according to the prescribed manner.
Occasions for use
The occasions in which the talit dresses are the morning service on weekdays, on Shabbat, on holidays and on fasting days; in the evening service of Tisha Beav; and on the eve of Yom Kippur, before Kol Nidrei, when you saw him before the fall of the night.
Whenever they put on tefillin, they are placed after the Talit, since the latter, being a more daily mitzvah, takes precedence.
Both Talit Gadol and Katan are mandatory for use as long as the sun is above the horizon, or there is sufficient sunlight to recognize a friend four steps away, so that at night use is not mandatory. To buy best one browse https://jewish.shop/pc/tallit.
Who uses it?
Among the Ashkenazim, in the diaspora communities, children under the age of 13 usually wear small talitot, and receive a larger ‘prayer mantle’ as a gift from the father at the bar mitzvah.
The practice among Sepharadim and Eastern Jews is that singles should wear talit; among the adherents of Chassidism only the married. The groom usually receives a new talit of the bride before the marriage ceremony.
Other occasions for the use of talit are: during the bircat cohanim to cover the head of the cohanim; in some marriages, when the groom wears the ‘mantle of prayers’ under the chuppah; at a funeral, when the men are buried in shrouds and a talit with the tzitziot removed or cut; and whenever a mitpalel is summoned.
The talit can be used from the moment the child can keep enough respect.
Regarding the use of tzitzit by women, there is no express prohibition, indeed, the Talmud refers to examples of women who wore them, but because it is a positive mitzvah without a historical foundation and that has a predetermined time, women, as well as the slaves are exempt.