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Ships within 48 hours · Estimated delivery Oct 25 - Oct 30
Polyester + Spandex
des options de rangement et une résistance à l’irritation
Ultra-robust
Les larges ouvertures structurées permettent un accès facile quand vous en avez besoin et un rangement aisé quand vous n’en avez pas besoin
Coros HR Monitor JAK tshirt Polyester + SpandexThe optical heart rate sensors use light to measure blood flow in the capillaries located under the skin. The top of the wrist is a convenient place for a watch, but it is not the best for sensors. Wearing it on the arm provides the optical sensor with an optimal amount of blood flow to collect heart rate data with accuracy equivalent to that of a traditional chest strap. FEATURES More comfortable and easier to wear than a chest strap. Easy to adjust
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