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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: S, M
2023 was the year the marathon world record moved away from the NN Running Team. Eliud Kipchoge won Berlin for a fifth time, but that October Kelvin Kiptum — not an NN athlete — ran 2:00:35 in Chicago and took the record off him. The team still produced a world champion: Uganda's Victor Kiplangat won the Budapest marathon title in 2:08:53. The same month, Kenenisa Bekele left the team after years in its orbit.
World Athletics · Olympics.com · Pulse Sports
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.