The best inflatable boards all have only one thing in common...a higher price tag. Red Paddle has it covered for all types of inflateable boards. When shopping cheaper boards trying to determine which one is best is hard. It doesn’t mean a cheap board is a waist of money, performance and durability will go down but performance is subject to the activity. Fitness isups are not fast but are stable for balance. Red Paddle is most durable but do you need a fitness or race board that can survive a crane driving over it? ISUPs are very durable in general to begin with. For beginners a $500 budget can get a decent fitness board, for other activities involving glide and speed more money should be spent on a stiffer board. $1000 and up- Red Paddle, SipaBoard, Starboard, are some top names for ISUP quality and performance. For general purpose and fitness a good popular brand ISUP That is less expensive is Isle. Stick w a name brand Is usually a safe choice but many inflatable boards actually come from the same factory’s in China with different graffics or size options. Looking up online reviews on you tube can be very helpful and educational.