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Arm sleeves are sized by arm circumference. Ask us for measurements of this exact piece if you need help choosing.
Listed size: M
Every cycle has a headline athlete; 2023's wrote hers in seven weeks. Between 2 June and 21 July, Faith Kipyegon — a Nike athlete since her teens — broke three world records in 49 days, all of them at Diamond League meetings in her own race kit: Florence, Paris, Monaco. In September she closed the circuit by winning the Diamond League final in Eugene in 3:50.72.
The roads belonged to a 23-year-old in Nike shoes. On 23 April Kelvin Kiptum won London in 2:01:25, a course record sixteen seconds outside the world record, with Geoffrey Kamworor of the NN Running Team second in 2:04:23; the same morning Sifan Hassan — Nike — won her marathon debut in 2:18:33 after stopping to stretch a leg at the hour mark.
Eliud Kipchoge, the man Kiptum had displaced, had his hardest year and then his fifth Berlin.
Arm sleeves are removable knit tubes from bicep to wrist that give runners adjustable warmth at cool starts, UPF sun protection, light compression and — worn singly — a sprint signature. They are the most modular piece in the race kit.
Their origin is basketball: Allen Iverson's trainer cut a compression stockinette for his elbow in January 2001, Iverson scored 51 that night, and the sleeve became a league staple before crossing to marathon start lines and single-armed sprinters.
The jobs are plural: warmth without a jacket, sun protection in UPF-rated versions that block around 98% of UV, light compression, and — not to be underrated — identity. A sleeve is the cheapest way a kit says something personal inside a federation uniform.
A pair weighs less than an energy gel, which is exactly why the cold-start calculus favours them.