is there such a thing as a vac bag that doesn't rip or deflate within days?

[HeadFairy]

All the ones I've bought before were pants... good concept poorly executed. If anyone knows of any decent ones could you point me in the right direction please.

We have some JML ones that we got in Homebase recently. They haven't been put through much yet, just filled with baby clothes and put in the garage. However they are still deflated after about 4 weeks so fingers crossed...