F50 adizero TRX FG Junior synthetic.Upper: Sprintskin, a revolutionary single-layer synthetic, reduces the weight. Innovative internal TPU support bands in the upper and offer support and stability.Insole: Ultralight sockliner. Bonus pair of comfort sockliners are included.Outsole: Sprint frame for lightweight stability. TRX TPU outsole with new stud configuration that improves your balance at top speeds.For use on firm ground.Weight: 4.6 oz.
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