מסכת כלים

פרק כח משנה ח

בגדי עניים

The clothes of paupers (which were comprised of patches sewn together),

even though

there is not in them (in any individual patch) three by three (fingerbreadths),

these are tamei midras.

A cloak that began to tear,

once most of it has torn,

(the material on either side of the tear) is not considered attached.

The thick (cloths; this refers to blankets, or heavy felt)

are not (subject to the minimum measurement) of three by three (fingerbreadths; rather they must be three square handbreadths, as less than that much of these materials lack utility).

כסת הסבלין

The cushion of porters (placed, beneath their loads, on their head or shoulders)

is tamei midras (as it was sometimes sat upon).

A (cloth) wine strainer

does not have the tumah of a seat (as it was dirty from the dregs of wine).

The hair kerchief of an old woman (made of a mesh-like material)

is tamei as a seat (i.e. since it is sometimes sat or lied upon).

The shirt of one who goes out (i.e. a prostitute)

that was made like netting

is tahor (as most people would not wear such a revealing garment).

One who makes a garment from a fishnet,

it is tahor,

and from its bottom is tamei (the bottom of a fishnet was made of a much tighter weave, and so was not too transparent a material to wear);

Rabbi Eliezer ben Yaakov says

also one who makes a garment from a fishnet

and doubles it,

it is tamei (as the two layers are opaque enough to wear).