We have a full range of Arena Kneelength swimsuits for you to choose from! Arena Water Instinct offers a hugely popular range of Arena Kneelength swimsuits. The Arena Kneesuit range is available as part of the Arena racing swimwear line. Some of our most popular Arena kneeskin suits include the Arena ST 2.0 Kneelength and the Arena Carbon Air 2 Kneelength. catering to both adults and children, Arena swim also offers an Arena Kneeskin junior range. Swimmer is an official Arena Australia stockist.