The Aviar Putt & Approach is the number one putter in disc golf. Having won more World Championships than all other putters combined. Aviar is our most popular disc. The R-Pro line is softer than most Pro blends. R-Pro discs have the best all-condition grip and an improved feel. R-Pro has great flexibility which makes it the best choice for putt & approach in cold/wet weather. The R-Pro Boss currently holds the Distance World Record at 1108 feet (338 M).