I am looking to buy a wetsuit for lap swimming in a 60 degree lake. Would a 4 mm neoprene wetsuit (by camaro of austria) be flexible enough? Would a 3 mm suit be warm enough? anyone have a review of the Camaro TI-4 Metallite Neoprene 4 mm wetsuit or the Camaro Black Sea 3 mm dive suit (both long sleeve)? thank you