Choosing the right competition suit can make the difference between comfort and speed in the water. Two of the most popular entry-level models are the Speedo Fastskin Hyperspark and the Arena Powerskin ST Next. Both are World Aquatics-approved competition suits that combine strong performance with an accessible price. In this comparison, we look at how they differ in terms of material, compression and comfort – useful for anyone wondering which competition suit is the best fit for them.
1. Material and durability
The Arena Powerskin ST Next is made from ECONYL® recycled nylon, giving the model a more sustainable profile. More than 60% of the yarn comes from recycled sources, such as old fishing nets and industrial waste. The suit is also around 20% lighter than its predecessor, the ST 2.0, and its low water absorption helps it remain light while swimming.
The Speedo Fastskin Hyperspark uses a woven stretch material with a double compression layer. Here, the focus is more on technology than sustainability: the suit feels firm, dries quickly and provides consistent compression across the body. Comparing the materials, the ST Next is more sustainable, while the Hyperspark feels more technically refined.
2. Compression and support
Both tech suits have a double compression structure, but the intensity differs. The Speedo Fastskin Hyperspark offers more targeted compression, particularly around the core and thighs, providing extra stability during starts and turns. The Arena Powerskin ST Next distributes pressure more evenly throughout the suit, making it feel slightly softer and more comfortable during longer races. If you want a competition suit with maximum compression, Speedo is the more likely choice, while Arena offers greater comfort without compromising performance.
3. Comfort and freedom of movement
The open-back Speedo competition kneeskin offers plenty of freedom around the shoulders and a streamlined fit. The flatlock seams reduce friction and help the suit sit securely in the water. The Speedo competition jammer also fits closely without digging in, keeping it comfortable during long races or multiple heats. Both models in the Speedo Fastskin Hyperspark range offer a compact, performance-focused fit designed for maximum speed and stability.
The Arena Powerskin ST Next has reinforced shoulder straps and a light, elastic fabric that adapts easily to the body. Both the Arena competition kneeskins and Arena competition jammers are flexible and easy to put on – ideal for swimmers buying their first tech suit. The main difference in the water is how they feel: Speedo feels tighter and more technical, while Arena feels more flexible and comfortable during longer sessions.
4. Weight and water absorption
The ST Next is around 20% lighter than the previous generation of Arena suits, partly because of the ECONYL® material's low water absorption. The Speedo Hyperspark uses a similarly light fabric that dries quickly and retains very little water. Both competition kneeskins are therefore light, quick-drying and suitable for several races in one day.
5. Which should you choose – Speedo or Arena?
When comparing both tech suits, you will find that they are close in terms of performance. The choice between Speedo and Arena mainly comes down to your personal preference for compression or comfort.
Conclusion
The Speedo Fastskin Hyperspark and Arena Powerskin ST Next are both strong entry-level options for competition kneeskins and competition jammers. Choose the ST Next if sustainability and comfort matter most to you, and the Hyperspark if you want more compression and technical stability. This comparison of tech suits will help you decide which competition suit is the best fit for you.