The first drawback I found is the finish of my left glove, which is not as snug thumb my right glove. Part of my finger "fleet" which is quite disturbing. For the rest the material "stretch" fits well in the hand = precision with the phone, and happily.
Second downside, these gloves you forget the cold weather. When it's windy the fabric does not protect you, and if the temperature falls below 0 you forget too. Too late, the material used is clearly not designed to save you mimines. However by the time midseason (5-10 degrees) it's ok.
