Speedo Fastskin Swimming Cap - Black

Yes. The Speedo Fastskin Racing Cap is approved by World Aquatics (WA) and is legal for use in all sanctioned competitive swimming events. It meets all international standards for competition use.

IQfit™ is Speedo Aqualab's proprietary cap fitting technology, developed using precise 3D scanning data from swimmers' heads worldwide. The data was used to create a true 3D cap shape modelled on the real contours of the head and face, providing a more secure, anatomical fit than standard swim caps. Testing has shown that the Fastskin Cap can reduce drag force by up to 3.4% compared to a standard cap.

Measure the circumference of your head starting at the centre of the forehead, and your ear-to-ear distance over the top of the head. Compare both measurements to the sizing table above. If your measurements fall between sizes, choose the larger size — a cap that is too small is harder to put on, more prone to tearing, and uncomfortable during competition.

The Speedo Fastskin Cap is designed for hydrodynamic performance, not as a waterproofing device. While it significantly reduces water penetration compared to a standard cap, it is not completely waterproof. Water will still enter around the edges and through the hair during swimming.

Hold the Fastskin Cap at the sides with both hands, place it at the front of your forehead, and stretch it back over the top and down the back of the head in one smooth motion. Avoid pulling the cap from the front edges as this can distort its shape. Check that there are no air pockets and that the cap sits flat all the way around.

The Fastskin Cap is a competition racing cap and while it can be used for training, regular training use will shorten its lifespan. The silicone is durable but benefits from being reserved for races and competition warm-ups. For everyday training, a standard silicone or latex cap is recommended. Speedo offer a wide range of training caps at Allens.

Rinse the cap thoroughly in cold fresh water immediately after every use to remove chlorine, salt, and any residue. Allow to dry completely before storing. Store the cap flat, away from direct sunlight and heat. Do not fold, roll, or compress the cap as this can cause creasing that affects its shape and fit. Avoid contact with petroleum-based products, sunscreen, or hair products as these can degrade the silicone.

The Fastskin Cap is designed to fit snugly to achieve the IQfit™ seal and maximise hydrodynamic performance — it will feel tighter than a standard training cap. This is normal and intentional. The silicone will ease slightly with regular use. If the cap feels painfully tight or leaves deep marks after a short time in the water, you may need to size up. Speak to a member of staff at Allens if you are unsure.