{"product_id":"new-balance-fresh-foam-x-hierro-v9-trail-runners-style-kz6f","title":"New Balance Fresh Foam X Hierro V9 Trail Runners (Style KZ6F)","description":"\u003cp\u003eIn this review of the New Balance Fresh Foam X Hierro V9 trail runners the bottom line is simple: these are for runners and hikers who want plush cushioning paired with aggressive trail grip. The shoe's standout is the dual density \u003cstrong\u003eFresh Foam X midsole\u003c\/strong\u003e that delivers noticeably softer underfoot feel while still offering a stable platform for uneven terrain. Built with a knitted upper and a gusseted tongue, the Hierro V9 balances protection and breathability so it performs well on long days when comfort and traction matter most.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual density Fresh Foam X:\u003c\/strong\u003e provides a plush top layer with a firmer base for cushioning and stability on varied trails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBio-based midsole content:\u003c\/strong\u003e incorporates approximately 3% renewable materials to reduce environmental impact without sacrificing performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibram outsole with 6mm lugs:\u003c\/strong\u003e redesigned tread and deeper lugs deliver superior grip on wet and dry terrain for confident footing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToe Protect technology:\u003c\/strong\u003e shields toes from rocks, roots, and debris to improve durability on rugged routes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGusseted knit tongue:\u003c\/strong\u003e keeps out grit while maintaining breathability for long-run comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Lug technology:\u003c\/strong\u003e enhances purchase on technical surfaces so transitions between surfaces feel secure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Hierro V9 suits trail runners and outdoor enthusiasts who prioritize cushioned comfort and dependable traction on technical singletrack and mixed surfaces. Because of the deeper lugs and protective toe, it is also a good choice for hikers who prefer a running-shoe feel rather than a heavy boot.\u003c\/p\u003e\n\u003cp\u003eRunners who need a very narrow fit or prefer a minimal, barefoot-style ride should look elsewhere, and anyone requiring maximal rock-plate protection for extremely sharp talus may want a more purpose-built mountaineering shoe.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlush and responsive \u003cstrong\u003eFresh Foam X\u003c\/strong\u003e cushioning makes long miles more comfortable.\u003c\/li\u003e\n\u003cli\u003eReliable multi-surface traction thanks to the Vibram outsole and 6mm lugs.\u003c\/li\u003e\n\u003cli\u003eProtective features like \u003cstrong\u003eToe Protect\u003c\/strong\u003e and a gusseted tongue reduce debris and impact from trail hazards.\u003c\/li\u003e\n\u003cli\u003eConstruction uses some \u003cstrong\u003ebio-based materials\u003c\/strong\u003e, reflecting a smaller environmental footprint.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSizing appears inconsistent among customers; some report the shoe runs small so trying on before purchase is advised.\u003c\/li\u003e\n\u003cli\u003eCushioning and stability impressions vary by runner, so very exacting stability seekers may prefer a firmer platform.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFresh Foam X Hierro V9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMidsole\u003c\/td\u003e\n\u003ctd\u003eDual density Fresh Foam X with ~3% bio-based content\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutsole\u003c\/td\u003e\n\u003ctd\u003eVibram outsole with 6mm lugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eToe Protect technology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpper\u003c\/td\u003e\n\u003ctd\u003eKnit upper with gusseted tongue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTraction Tech\u003c\/td\u003e\n\u003ctd\u003eTraction Lug technology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Fresh Foam X Hierro V9 is a strong choice for trail runners who want plush, long-run comfort paired with aggressive traction and solid rock protection. It represents good value for those who prefer a cushioned, versatile trail shoe, though shoppers should confirm fit before committing due to mixed sizing reports.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these shoes good for technical trails?\u003c\/strong\u003e\u003cbr\u003eYes. The Vibram outsole, 6mm lugs and Toe Protect make the Hierro V9 well suited to technical and mixed-surface trails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they run true to size?\u003c\/strong\u003e\u003cbr\u003eCustomer feedback is mixed; some find them true to size while others report a slightly small fit, so trying them on is recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the cushioning firm or soft?\u003c\/strong\u003e\u003cbr\u003eThe dual density Fresh Foam X provides a noticeably soft, cushioned ride with a firmer layer underneath for some stability on uneven terrain.\u003c\/p\u003e","brand":"New Balance","offers":[{"title":"Default Title","offer_id":48191248531675,"sku":"B0D2BRKZ6F","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51XqT122SDL._AC_SL1000_b59b1f45-12c6-439d-b02f-cab22f40abd1.jpg?v=1769697867","url":"https:\/\/gearmusthave.com\/products\/new-balance-fresh-foam-x-hierro-v9-trail-runners-style-kz6f","provider":"GearMustHave","version":"1.0","type":"link"}