I have had the hip waders for several years and they have not sprung ay leaks. I am not very hard usage-wise on my gear but they seem to be quite durable. They fold up into a small pouch for travel. I cannot remember what they were called but it seems to me that they were indeed called flyweight. I will check the orvis site and get back to you. Also, have a look at Sierra Trading Post for hip waders. Did you check Cabelas ?