Constructed with 100% polyester yarn-dyed jersey knit (3.98 oz/yd2), this jacket boasts cool TopShield™ Technology, wicking moisture and blocking microbes. Grey has a unique space-dye effect, while True Black is solid interlock. Plus, a whopping Ultraviolet Protection Factor of 20+ (zapping up to 95% of UV radiation) means you can stay out longer. Features include raglan sleeve styling for movement and thumbholes in the cuffs for extra warmth. The Women’s version has flattering princess seams and a full zip front plus pockets to stash your stuff. Track Mom will love this fab piece!