{"product_id":"mens-alphafly-4","title":"Men's Alphafly 4","description":"\u003ch2\u003eNike's Marathon Racer, Now in Its Fourth Version\u003c\/h2\u003e\u003cp\u003eThe men's Alphafly 4 is the shoe Nike builds for race day at the half and full marathon. It's a high-stack racer with a carbon plate and two kinds of ZoomX foam, made for runners who have trained for a goal race and want a shoe that keeps its pop late in the course.\u003c\/p\u003e\u003cp\u003eFor this version Nike reworked the forefoot Air Zoom pods for the first time, so the shoe lands softer and makes less noise, swapped in a lighter ZoomX LT layer on top, and added foam under the rocker at the front. Nike lists it at about 6.6 oz in a men's 8.5, with an 8mm drop.\u003c\/p\u003e\u003ch3\u003eThe Technology\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAir Zoom Units\u003c\/strong\u003e\u003cbr\u003ePressurized air pods under the forefoot, reworked to feel softer and quieter on each step.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eZoomX and ZoomX LT Foams\u003c\/strong\u003e\u003cbr\u003eA lighter layer of foam rides on top of Nike's springiest foam, keeping weight down without losing bounce.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCarbon Fiber Flyplate\u003c\/strong\u003e\u003cbr\u003eA broad, full-length plate that adds snap at toe-off and keeps the tall midsole steady over 26.2 miles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAtomknit Upper\u003c\/strong\u003e\u003cbr\u003eA light knit with vented zones for airflow and cables through the midfoot to keep your foot locked in.\u003c\/p\u003e\u003ch3\u003eWho This Shoe Is For\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMen racing a half or full marathon who want a carbon-plated race shoe\u003c\/li\u003e\n\u003cli\u003eRunners chasing a PR or a Boston qualifier at CIM, Oakland or another spring marathon\u003c\/li\u003e\n\u003cli\u003eExperienced runners who save a dedicated shoe for race day and key workouts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrop\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8mm (Nike, men’s 8.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAbout 6.6 oz (Nike, men’s 8.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMidsole\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZoomX with ZoomX LT, forefoot Air Zoom units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePlate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCarbon fiber Flyplate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUpper\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAtomknit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizes in store\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMen’s 7–12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBest For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHalf marathon and marathon racing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eFit note:\u003c\/strong\u003e Every foot is different, and sizing can change between versions. 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