Tefillin Retzuos, Maintenance, and Purchasing Instructions

A Tefillin Shoppers Guide (Part II)

A Tefillin Shoppers Guide

Blended and Synthetic Tzitzis

Is a silk Talis Kosher? What is the basis of the halachic controversy whether one may have a talis koton made of rayon? I have a talis koton that says that it is made of a cotton-polyester blend. Do I recite a brocha when I put it on?