Swimwear design and construction

A wetsuit, comprising:

• an upper portion with a first central region comprising a flexible neoprene front buoyancy enhancer and a flexible neoprene back buoyancy enhancer, each configured to extend from a neck region of the wetsuit to a crotch region of the wetsuit, and a first material having a first thickness and first density p1;
• a second lateral region between the front buoyancy enhancer and the back buoyancy enhancer and longitudinally positioned in a middle portion approximately between a rib cage region and a hip region of the wetsuit comprising a second material having a second thickness and second density p2;
• a lower portion of the wetsuit configured to extend at least to a swimmer's thighs comprising a low density material configured to improve buoyancy of the wetsuit about a swimmer's legs;
• wherein p2>p1,
• wherein the wetsuit comprises a maximum material thickness of 5.0 mm or less,
• wherein the buoyancy per unit area of the first central region is greater than the buoyancy per unit area of the second lateral region, and
• wherein the front buoyancy enhancer and the back buoyancy enhancer, in addition to the second lateral region on either side of a vertical centerline, provides additional buoyancy in a center of the wetsuit along a longitudinal axis located in the sagittal plane, configured to reduce mass in a chest of the wetsuit and configured to put a swimmer's body in a neutral body position relative to the swimmer's legs which also have increased buoyancy due to the lower portion of the wetsuit.