Buy Under Armour Fly-By Running Vest from our Women's Shirts & Tops range at John Lewis & Partners. Free Delivery on orders over £50.
Built for cranking out the miles in the heat — and keeping you cool the whole time, Under Armour's Fly-By is a testament to the brand's dedication to bringing you the best performance fabrics.
Constructed with levels of mesh that are mapped to your body, optimum ventilation is guaranteed. Sweat-wicking technology keeps you dry and smelling fresh (no matter how many squats you do), and reflective details allow you to make the rules for when you want to train. Now there's really no excuses to hit the gym.
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