Why do some Jewish men wear those hats on their heads? And what's with the women's wigs?
Why Married Jewish Women Cover Their Hair
COVERING MY JEWISH HEAD
Ritual Practice: Hair Covering
Kippah: A Blessing On Your Head
"Question 11.1.2: Dress: Why do many Jewish men wear head coverings (variously referred to as "yarmulkas," "skullcaps," and "kipot")?"
Cover Your Hair.com - headbands, scarves, tiechels, snoods, chappones, hats and caps. Includes how to tie tiechel, hair care tips.
Tznius.com - Website offers modest, comfortable scarves and clothing; includes how to tie your scarf
ModestWorld.com - several styles of scarf, snoods and hats
Headcoverings by Devorah - several styles, including tiechel, snood, and mantilla; includes tying instructions as well as articles and links to further material
Covering Our Hair
Scarves and Hats for Jewish Women - listing from Modestclothes.com
It is an obligation min haTorah (from the Torah)
for a married woman to have her hair covered whenever
she is in a public area or appears amongst a large number
of people. Chazal (our sages) labeled hair
of a married woman "ervah" (area
that must be covered) and it is therefore ossur
(prohibited) mid'Rabanan (from the sages) to
say a bracha (blessing) when looking at such
hair, be it another woman's hair which he may not see,
or his own wife's which he may see.
. . . continued . . .
description of tzniut covering of hair found in ModestWorld.com/laws