DANIEL M it is best to try them on before you buy. if you cant, you can ring the OR store and ask them. they will have you measure your hand, and make a recommendation. The people in the OR store are really helpful. When i bought mine, i had to send them back before i got the sizing right. best of luck and please let me know what other questions i could answer. from dan at SummitClimb

JOHN B Slightly large. They feel like they are already appropriately sized up for their high-altitude and deep cold purposes. If you order your regular glove size or the glove size recommended by the sizing chart, there will still be room for a light liner glove. I would recommend ordering your normal glove size with the expectation that they will be slightly "high-volume".

MARK M Size ordered fit as expected. These are great gloves!

KEVIN P Good, just measure around your palm and compare it to the OR glove sizing chart.

DOREEN E OR Alti Mitts for Women - I purchased a size 'large' because I had tried ski mitts on and only the 'large' was comfortable (w/ liner glove added), other gloves/mitts (like Isotoner) I usually wear a medium. I also knew I would have to put an additional pair of gloves underneath (Under Armour liners) and wanted to make sure there was adequate room. I took these Mitts for the final Ascent to Mount Kilimanjaro and my hands were warm. Do count on wearing a liner glove underneath, the Mitts and Liner Mitt is warm but you are not able to do anything with your hands ( tie or unzip something,etc.). I researched quite a bit before this purchase and am very satisfied with my purchase.

LISA H I am very happy with the product and the fit which is t rue to size.