I picked up Wringer Wear Liquid Hand Chalk for pickleball and it does exactly what it says: keeps my hands dry. One application lasts me about three games, and when my hands start sweating I just dry them off and reapply. The travel-sized bottle has a handy clip that hooks right onto my bag, so it is always with me. It is final sale, so keep that in mind, but for grip and dryness it works well.