{"product_id":"brooks-mens-glycerin-gts-21-supportive-running-shoe-plush","title":"Brooks Men's Glycerin GTS 21 Supportive Running Shoe - Plush","description":"\u003cp\u003eOur review of the Brooks Men's Glycerin GTS 21 finds it best for runners who want maximum softness combined with reliable support. The single biggest reason to consider these shoes is the pairing of nitrogen-infused DNA LOFT v3 cushioning with the GuideRails holistic support system, which delivers pillowy comfort without feeling unstable. The Glycerin GTS 21 is presented as the more supportive successor to the Glycerin 20 and carries the APMA Seal of Acceptance, making it a strong pick for road runners or anyone seeking cushioning that helps relieve foot and knee discomfort.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eGuideRails support:\u003c\/strong\u003e Keeps excess movement in check by supporting the body along its natural motion path for steadier runs and workouts.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDNA LOFT v3 cushioning:\u003c\/strong\u003e Nitrogen-infused foam offers supreme softness that is designed to remain responsive and durable while feeling plush underfoot.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePlush internal fit:\u003c\/strong\u003e An internal stretch bootie hugs the foot and expands with the stride for a comfortable, sock-like fit that reduces hotspots.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEngineered warp knit upper:\u003c\/strong\u003e Breathable and flexible material provides an accommodating fit for slightly wider feet while staying soft against the skin.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eBroad platform:\u003c\/strong\u003e Stabilizes the foot and promotes smooth heel-to-toe transitions for a steady, cushioned ride on roads and in the gym.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eAPMA Seal of Acceptance:\u003c\/strong\u003e Recognized design that supports foot health, which is reassuring for runners with knee or foot pain concerns.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Glycerin GTS 21 is ideal for men who prioritize maximum cushioning but still need corrective support, such as runners with mild overpronation or those recovering from foot discomfort. It works well for road running, cross training, and daily gym sessions where a soft yet supported ride is desired.\u003c\/p\u003e\n\u003cp\u003eRunners seeking a very lightweight racer or minimal shoe should look elsewhere, as these are built for plush cushioning and stability rather than speed. Also, those who prefer an ultra-firm ride or a very narrow racing fit may find the stretch bootie and broad platform less suited to their needs.\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\u003eExceptionally comfortable cushioning that reduces pressure and eases impact on knees.\u003c\/li\u003e\n \u003cli\u003eGuideRails holistic support offers controlled motion without feeling restrictive.\u003c\/li\u003e\n \u003cli\u003eAccommodating, breathable upper and internal stretch bootie provide a soft, adaptive fit for wider feet.\u003c\/li\u003e\n \u003cli\u003eRecognized by the APMA for features that support foot health.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eSome customers report variable durability, so longevity may differ by runner and use case.\u003c\/li\u003e\n \u003cli\u003eThe plush, protective design adds weight compared with minimalist or racing shoes.\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\u003eGlycerin GTS 21\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eRoad running, cross training, gym\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSupport system\u003c\/td\u003e\n\u003ctd\u003eGuideRails holistic support\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCushioning\u003c\/td\u003e\n\u003ctd\u003eNitrogen-infused DNA LOFT v3\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eUpper\u003c\/td\u003e\n\u003ctd\u003eEngineered warp knit with internal stretch bootie\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePredecessor\u003c\/td\u003e\n\u003ctd\u003eGlycerin GTS 20\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003eAPMA Seal of Acceptance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Brooks Men's Glycerin GTS 21 is a strong choice for runners who want plush cushioning paired with meaningful support; its GuideRails system and DNA LOFT v3 foam make it especially good for those with foot discomfort or mild overpronation. It represents good value for anyone prioritizing comfort and stability over a minimal or lightweight racing feel.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these shoes good for wide feet?\u003c\/strong\u003e\u003cbr\u003eThe engineered warp knit upper and internal stretch bootie provide an accommodating fit that many customers report works well for wider feet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they help with knee or foot pain?\u003c\/strong\u003e\u003cbr\u003eMany users find the plush cushioning and holistic support relieve pressure and help reduce knee and foot discomfort during runs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do they differ from the Glycerin 20?\u003c\/strong\u003e\u003cbr\u003eThe GTS 21 adds the GuideRails support to the Glycerin 20 platform and updates cushioning to DNA LOFT v3 for a softer, more supportive ride.\u003c\/p\u003e","brand":"Brooks","offers":[{"title":"Default Title","offer_id":48232656175323,"sku":"B0CW7DYRY4","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71jbnBiBjtL._AC_SL1500.jpg?v=1770823176","url":"https:\/\/gearmusthave.com\/products\/brooks-mens-glycerin-gts-21-supportive-running-shoe-plush","provider":"GearMustHave","version":"1.0","type":"link"}