Ok, maybe this is completely ridiculous and/or illegal, but here me out. I always thought the reason for a wetsuit was warmth. Research tells me it also helps with bouyancy and effiency in swimming. So, since I am not going to buy a wetsuit for my sprint tri, can I make a psuedo one. I have a knee length speedo suit I plan on wearing and a skintight, sleeveless runners/bikers jerseys I was going to wear for the bike/run. Is it legal/possible to buy some neoprene, cut it into pieces and then put those pieces on my thighs, hammies, stomach and back, under my clothes. Would this help at all? Most of the articles I have read have said that the thighs and stomach have the thickest material for best buoyancy, will my homemade wetsuit be of any help, and is it legal to do if so? Thanks, hopefully this is not too outrageous, just my crazy mind working.