Every Durex condom is electronically tested to ensure it's up to the job. A random sample of condoms is also taken from each batch for more rigorous quality tests. After measuring thickness and length, samples go through the air inflation test to check for burst strength and elasticity (typically a Durex condom can hold 40 liters of air without bursting). Water leak testing is also carried out. Sample condoms are filled with water - suspended for one minute and rolled on blotting paper which shows up any leakage. Approximately two million water tests are carried out every month in Durex factories. If the sample fails any of the tests, the whole batch is rejected!

No. The thickness of the condom doesn't necessarily correspond to safety. Please make sure to read the instruction manual.

Some Durex condoms are suitable for anal sex, please check the product instructions for further clarification. There are currently no specific standards for the manufacturing of condoms for anal sex. For anal sex in particular, application of additional water-based or silicone-based lubricants to the outside of the condom once donned is recommended to help reduce the risk of breakage or slippage of the condom. Remember to always read the instructions before use.

There has been no research into the performance of condoms when they are used in or underwater. The risk of slippage, for example, might increase when used in such circumstances.