Fitting Speedos properly is essential for comfort and performance in competitive swimming. When selecting a pair of Speedos, it is recommended to try them on before purchasing to ensure the correct size. They should fit snugly but not be overly tight or restrictive. The waistband should sit comfortably at the waist without digging in or slipping down. It is important to note that different brands may have slightly different sizing charts, so familiarity with specific brand measurements can be helpful when trying on different models or styles. Swimwear materials often stretch when wet, so considering this factor when choosing their initial size is crucial.