I work on rooftops in the hot southern sun... I love these boots, the sole is super grippy and shows nearly no sign of wear after 8 months of 12 hr/day usage. Although the heat I encounter was enough to warp the rubber toe and separate the glue on the shoe sole which in turn comprised its weather "proofness". A stitched through sole would have prevented this but it is an extreme scenario. that being said they are very comfortable and were waterproof up until the heat of summer warped the rubber. Despite all the heat my feet were so comfortable I never even noticed.  I would and plan on buying them again . . . just going to swap them out on the record breaking days. Might have lasted forever...