Its not just Tzitzis there are tzitzis with thick string or thin strings, t-shirt tzitzis or traditional cotton tzitzis. are Ashkenaz or Sefardic or Chabad. do you need one hole tzitzis or 2 hole chasidic Tzitzis. you can never have enough tzitzis for the summer or for the winter. some people have This Tzitzis for Weekday wearing and some have thick Tzitzis for shabbos. Cotton Tzizit for the winter and Mesh Tzitzis for the summer. Kids love T-shirt tzitzis.