reply to rokjok; the millbank bag is a( purpose) made water filter bag. its about 18 1/2 inchs long and 7inchs wide. so its compact to tote. sure you could use your pantyhose, paper filter etc.. but those items are not as hardwearing as the m/b bag. and i guess its multipurpose as it is a bag you can gather your wildberrys etc...in it.... vince...