I will be getting an Immersion Research Drysuit this winter in order to ...SUP..over the Winter. I think there may be a market here as the fitness and therapeutic qualities of a good SUP (in my case the Tahitian style) stroke are very compelling and I would argue vital to paddler who have been sitting or kneeling for years. I have client with us at Manhattan Kayak Company who was a figure skater but got fibromyalgia and could not find any activity that should could do that made her feel good... SUP was the answer. Personally, vigorous SUP was the solution to years of nagging shoulder and lower back tweaks and twangs as well as an unbelievable fat metabolizer. I have taught and trained people in all sorts of fitness and have not seen the same results as a solid season of SUP.. I do the believe the key is good technique,high tempo, and consistency. Knowing how to open up and engage the hips with each and every stroke while being mindful of bringing the core towards the paddle blade really connects the kinetic dots. Full body , feet to fingertips is what is all about...