LIVETRACK: Friends and family can follow your real-time location and view preplanned courses

Elastic lacing system for easy on/off use

it's designed with reflective elements for low-light conditions

and odor resistance of 100% Merino wool with interlock knit for comfort

PULSE OX SENSOR: Track your blood oxygen saturation while you’re awake or asleep

SAYSKY Men's Clean Motion Long Sleeve Black Bottoms LIVETRACK: Friends and family canXMRLS51C901 The Saysky Clean Motion Long Sleeve is for passionate runners who also love hitting the gym and are looking for the perfect soft and breathable gear. Our Motion tops are made out of drirelease fabric, which has one of the best moisture wicking and quick drying abilities in the market. The unique drirelease technology has the moisture transport system inherent in the yarn and delivers permanent wicking that doesnt wash out. Features Men's