Exs extra safe - 144 pack exs extra safe condoms are made to be a slightly thicker latex with a thickness of 0.082mm compared to normal condoms which have an average wall thickness of 0.07mm. Exs extra safe condoms are for when a sense of extra protection is required. Exs extra safe has no latex odor and is made from a fine but strong silky latex.exs extra safe condoms are vigorously tested to European standards and by the British Standards Institute (BSI)