I where a size US10/AUS9. I work as a water meter reader and use them 5 days a week between 7-10 hours a day and they are also very comfortable. I have worn Merrell's, and other waterproof shoes; long-term, the Siskiyou mid waterproof wins hands down. Lasts twice as long as merrell, up to 6 months, instead of three, the stitching lasts well, get slightly wet after a few hours walking in rain, the toe is large which is protected by the rubber overlay, so there is less scuff to the front portion of the shoe, but otherwise, I give it 5 stars for quality. Also, they are bought in AUS for well over AU$100, up to AU$185 in some stores.Thanks to Keen, they are worth every $. I will be buying these again and again, each 6 monthly cycle. Cheers!Regards, B