Hi all. Well I'm going to start practising for my dive course next month, and in order to do that I have to swim 8 laps to qualify for the SCUBA course. I have severe osteo arthritis (knees and starting in lower back) and the cold makes it worse. We have a gym close by with a swimming pool and I plan to begin training. However even though the pool is heated (75 degrees) I still find the water cold. Can anyone recommend a warm but thin swimsuit (arms and legs) I can use for training so I don't stiffen and get too cold in the water while I'm training and doing my swimming in the pool? Thanks for any help.