* The Torah uses different words for linen.
פשתן - פשתים - פשתה - שש - בד פשתן is while it is still attached to the
ground פשתה same as above (singular) פשתים is when it is a thread (plural, many strands) שש is after it’s beaten but before it's turned into thread. בד is when it is a fabric. Linen clothing can be
called בגדיבד,בגדי פשתן or
בגדי שש The Rambam (כלי המקדש 8- 13,14)
Paskens like our גמרא
wherever the Torah says שש the thread had to be made
with six threads (כפול שש). When it says משזר then the
thread had to be made with eight threads (כפול שמנה). *Shaarei
Ahron Shemos 25-4, 28-39
(R. Ahron Rotter זצ"ל)
According
to Mori V'Rabi Harav Hagaon R.Shlomo Miller Shlita,
You may not wear raincoats in a רשות הרבים (No Eiruv) while
the attached hood is tucked inside its pocket.
Yoma 53b The Gadol Hador
Davened for a raincoat
The Gemoro tells the story of R. Chanina Ben Dosa, who was walking
on the street and the rain came down on him. He Davened to Hashem
and said,” the whole world has comfort and Chanina is in pain.”
The מהרש"א asks how could it be, The Chosid R. Chanina B.D. would
ask Hashem to stop the rain for the whole world, for his
personal
comfort, even at the expense of the rest of the world.
The בן יהוידע (Ben Ish Chai) answers," all he asked from
Hashem was, he should manage to find a coat to protect him from
the rain.
However, Hashem stopped the rain instead, לכבוד R.Ch.B.D."