: That kinda worries me. I am building these in Interior Alaska and
: the water temps are seldom more than mid 40's. I am kinda used
: to wearing more clothes on the water than most. then again on a
: sunny day that black PVC I have might just turn the whole front
: into a solar oven. I guess that is all part of the learning
: process.
I do a lot of whitewater kayaking, and we generally wear neoprene booties. I've been swimming in 25F weather and felt warm enough to want to take some stuff off. That's with a full dry suit, and I would recommend you not even think about going out in 40F water without one, as well as never go alone. Cold water substantially increases the danger level of kayaking.