What Paul Wadsworth says: "These sport sacks from DRYV BAGS have got to be the grippiest sport sacks of all time. Just opening the ziplock bag and squeezing produces chalk dust! So, if you suffer from damp or sweaty hands, one of these DRYV BAGS will keep your grip consistent, and there's so much dust in these things, the dust will always indicate your wind direction and speed on the putting green."