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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
Get estimated heart rate4 data along with alerts if your heart rate stays too high or too low while you’re at rest
YKK® zipper hardware
The Asolo/Vibram outsole has a self cleaning design and it uses the MegaGrip compound which gives amazing grip
Side-seamed construction minimizes twisting and maximizes comfort
The Air Director™ back panel and ventilated harness keep you cool and comfortable
Forerunner® 255 Slate Gray Sporting Goods/Climbing Get estimated heart rate4 dataRUN AT A HIGHER LEVEL Youre making strides. Now, lets take the next step. Get the training and recovery insights youll need to notch your best time yet. Get an overview of your sleep, HRV status and daily workout with morning report. Charge less, train more with up to 14 days of battery life in smartwatch mode and up to 30 hours in GPS mode. Push your limits with a built in triathlon feature and 30+ activity profiles. Plan your strategy with daily