- A boy of chinuch age must be trained to wear a begged that measures an area that covers his head and most of his torso. At age 9, this measurement has been found to be 1 ½ amos. The begged should therefore measure ¾ ama (36cm) in front and ¾ ama in the back. This criterion is the minimum size even when an adult is wearing it. Less than this is a worry of beracha l’vatalla. To avoid an doubt, “men of deeds” are particular to have the size measure 1 ama in front and 1 ama in the back. (MB4 – ShaH8 – BeH “ve’az”)
- The shoulders of a tallis katan should be wide and recognizable. Not mere straps. (MB1)
- It is best for the tallis katan to be sleeveless. (MB4)
- If the tallis katan gets folded and crumpled from wearing it, since it has the proper measurement when spread it out, it’s kasher. (MB4)
