I bought a set of three bags the same size (12" x 16"). This size accommodates anything delicate enough to require a mesh bag for the washer. They appear well made; I've not put them through enough laundry cycles yet to judge durability. This is the third or fourth "Pinzon" (Amazon) branded item we've purchased in the last few months and have been very satisfied with each purchase. Pinzon is looking like a "go to" brand for us.These bags work well for washing delicates. I appreciate the sturdy zipper. Be aware you have to slip the zipper end into a little sleeve to keep it from opening up - which can be a little difficult if you have large fingers like my husband - but my fingers can move it just fine. The mesh is sturdier than I expected. I've bought other delicates bags that have fallen apart or come open in the wash - this one stays closed and seems to be well-constructed.Have been looking for a sturdy cylindrical lingerie laundry bag to replace my worn out, falling apart one for over a year. These seem to be very well made and I do expect them to last a long time. I do wish they were also made in a double length size so I could get two items in on one bag. But, for now I’m just happy to have some sturdy ones of any size.These bags worked. I used them the same day I got them since I needed to wash some delicates before a trip. I highly recommend! Love these bags! You will not regret this purchase!Mesh bags great for keeping undergarments and socks together!I used this product to wash my cloth vertical blinds and it worked great.Some of these types of bags only have a draw string...NOT good enough to hold the clothes inside ! So These zippers work great.Also this bag material helps to keep out that pesky lint from the other laundry in the load, and that's Excellent ! Also they dry quickly so they don't smell all musty later on. Obviously I'm a fan of this product. ?We used the three medium bags to contain mess kits for Scouts. They worked great for this purpose!