I have tried these in all kinds of conditions and compared them to BD Patrol, Stoic Welders, MH Hydras and Burton Goretex gloves and these beat them all to shreds. I allpied some nikwax glove proof and they have not let any water in. They got a little wet after a lot of contact at Keystone in the North Bowl in 10 degree weather but remained dry inside the glove. I would use these from 15-30 degrees. Anyting higher then that would be a bit warm. I hope they make something like this again for next season!