I own the Star Rival inflatable kayak which is essentially a large SUP with a low, folding lawn chair attached. It is designed to be paddled from either a stand-up or sit-down position. The STAGE 2SIDE paddle is a perfect match for this style of SUPing/kayaking. It is extremely easy to adjust paddle length on the fly. The kayak stroke is much more efficient than a SUP stroke as you are not always changing hands and moving the paddle from one side to the other in order to keep tracking in a straight line. I highly recommend this paddle for standard SUPs and SUP/Kayak combos like mine.

Big improvement from the original 5-piece aluminum "Switchblade" I bought for $40 from "Amazon Warehouse" 2 years ago.
The SUP motion, reaching forward, switching sides, feathering, ruddering, J-stroking, to go straight is bearable for awhile but the
kayak stroke is easier, more natural and efficient.
I have 2 "SUP/Yaks". The blade shortens to 285cm and works very well kneeling or sitting(best in an elevated chair with hands high) using a kayak stroke. Also added 1" drip rings as "stops" to evenly center blades quickly.
The 100% carbon blades are an upgrade from the flexible PP/FG on the 3 other models.
The blade shafts flex progressively more they are extended. If paddling aggressively, there is a minor rebound at the end of the stroke but not as much as the PP/FG blade. The Quick Cam-Locks work great but must be tightened per help sheet so blades don't rotate.
In SUP mode (with handle), the shaft/blade is rigid and provides a powerful stroke. Great option for cross-training and single paddle skill improvement.
A lightly padded carrying bag(also for shipping protection)plus drip rings would be a nice addition. Changing the # marks to height marks would make it easier when used by multiple paddlers. Thanks to STAGE for making SUP'ing great again!

The quality of the construction is great, I am happy I picked this one and not the aluminum as I am quite rough on my equipment.

The 2side paddle is totally awesome! I have both the aluminum (for my wife) and the 100% carbon fiber for myself, and both have been fantastic. The build quality on both of the paddles is good, but the 100% carbon fiber is worth the extra price. The paddle is very lightweight and easy to handle. This paddle makes paddleboarding for me FUN AGAIN!!!! Before this paddle I was mostly looking forward to the beer and family time during lake days, but the 2side makes me want to go out on a paddleboard. I can go much faster even in the wind.