Whoever is careful in the mitzvah of tzitzit merits to receive the Divine Presence.
Tzitzit born out of halacha.
Every 613 design begins in one place: Jewish law.
From the earliest stage of the idea we set out on a thorough research journey, aiming to create a garment with contemporary aesthetics and everyday comfort, without compromising on the requirements of halacha.
The design did not come in spite of halacha.
It was born out of it.
How 613 was built.
- In-depth study of the laws of tzitzit and the Tallit Katan.
- Development of dozens of designs and prototypes.
- A comprehensive halachic review of every detail in the garment’s structure.
- Guidance and supervision by Rabbi Maor Cohen.
- Presentation of the designs to the Rishon LeZion, Rabbi Yitzchak Yosef, and receipt of a letter of approbation.
Built on the foundations of halacha
Opening height
In every 613 design the opening was planned so that most of the garment’s height is open and the smaller part closed, in line with the accepted halachic requirements for the structure of a tzitzit garment. The ratio is measured from the top edge of the shoulder to the bottom edge of the garment at the side seam.
Position of the holes
The holes are positioned within the halachic range set by our Sages and the halachic authorities. In 613 designs the holes sit approximately 4.5 cm from each side, a position considered mehudar and lechatchila.
Kashrut of the strings
The tzitzit strings are sourced from a long-established manufacturer in Bnei Brak, operating under the kashrut supervision of the Tel Aviv-Yafo Rabbinate headed by Rabbi Aryeh Levin, and produced according to the accepted requirements of halacha.
Tying the strings
The tzitzit are tied by God-fearing avrechim in Beit Shemesh. 613 maintains direct contact with the tiers and meets them in person, out of a commitment to care, responsibility and respect for the mitzvah.
Black strings
On 613’s black shirts you may choose black strings, following the opinion of the Rambam and the words of Maran in the Shulchan Aruch, who wrote that those scrupulous in the mitzvot would make the tzitzit strings in the color of the garment.
“A person should always be careful in the mitzvah of tzitzit, for Scripture weighed it and made all the commandments depend upon it.”
Rambam
613 · JEWISH LAW
Or HaHalacha — The Light of Jewish Law
Questions and answers in Jewish law on tzitzit and the Tallit Katan
This responsa collection grew out of a desire to give clear, practical answers to the questions that arise around the commandment of tzitzit and the Tallit Katan — particularly for garments that combine a modern appearance and everyday comfort with full adherence to Jewish law.
Prepared for 613 by Rabbi Maor Cohen, with an approbation from Rabbi Yitzchak Yosef, Rishon LeZion and Chief Rabbi of Israel.
What's inside
- Wearing a Tallit Katan
- Cotton garments
- Garment and thread colors
- Buttons and side fasteners
- Metal reinforcement rings
- The Shehecheyanu blessing
- Sleeping in a Tallit Katan
- Sale to a non-Jew
- Front buttons and garment corners
- Side zippers and four corners
Complete translation of the 16-page Hebrew publication. This is an informational translation, not a certified translation; the religious rulings are those of the original authors.