Surf 's up! But before you jump in, consider which of these wetsuits you want to invest in. They are all constructed from neoprene with various levels of thickness to perform in different water temperatures. For example, a thickness of 3/2mm means the suit is 3mm thick in the chest and core of the body to ensure heat is retained in vital areas. The 2mm neoprene is found in the arms and paddle areas for better flexibility. They are good for summer surfing in the UK. The colder the water, the thicker the wetsuit needs to be. Shorties are perfect for warm water and hot weather.