A porter’s cushion is [susceptible to becoming] tamei with midras [tumah]. A wine strainer is not subject to [the tumah] of a seat. The hairnet of an old woman is [susceptible to becoming] tamei with midras [tumah]. The shirt of a harlot that was fashioned like netting is not susceptible to tumah. [If] one makes a garment out of a fishing net, [it] is tahor, but if [he made it] out of [the net’s] bottom, it is tamei. R’ Eliezer ben Yaakov says: Also [if] one made a garment out of a fishing net and he doubled it, it is tamei.