20 BioBag Eco Food & Freezer Bags 6L 5 "Guilt free use" Miss Langford 03 September 2020 The first one I pulled out I tore when trying to get something in the top (that was a little too big tbh). I wouldn't say they are delicate as besides using them in the freezer for ice cubes, fruit, fish etc we've also used them for some nuts and bolts when dismantling something. And most importantly for such a transient task I did not feel guilty!! Also used to take cookies to the in-laws and neighbours so can say they are robust when jostled in a handbag. Highly recommend! Have both 4L and 6L.