{"product_id":"brooks-glycerin-gts-21-supportive-running-shoe-plush-support-shoes","title":"Brooks Glycerin GTS 21 Supportive Running Shoe - Plush Support Shoes","description":"\u003cp\u003eOur review of the Brooks Glycerin GTS 21 finds it best for runners who prize maximum cushioning but still need reliable support. The single biggest reason to consider these shoes is the combination of nitrogen-infused DNA LOFT v3 foam for pillowy softness with Brooks' GuideRails holistic support that keeps excess motion in check. Worn on road runs, at the gym, or during long days on your feet, the Glycerin GTS 21 delivers a plush, stable ride while the engineered warp knit upper and internal stretch bootie improve fit and comfort.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuideRails support:\u003c\/strong\u003e The holistic support system controls excess movement to protect knees and keep the foot aligned during runs and cross training.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDNA LOFT v3 cushioning:\u003c\/strong\u003e Nitrogen-infused foam offers supreme softness that remains responsive and durable for long, comfortable miles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarp knit upper:\u003c\/strong\u003e The newly engineered knit is breathable and flexible, giving an accommodating fit that feels soft against the foot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal stretch bootie:\u003c\/strong\u003e A plush bootie wraps the foot and expands with the stride for a more secure, comfortable fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad platform:\u003c\/strong\u003e A wider base stabilizes transitions from heel to toe for a smooth, steady ride.\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 road runners and gym-goers who want maximal cushioning without sacrificing support, including those who experience foot discomfort or need extra arch assistance. Runners who appreciate a plush underfoot feel and require a stable platform for longer runs will find these particularly comfortable.\u003c\/p\u003e\n\u003cp\u003eThose who prefer a very firm, minimalist shoe or who need a lightweight race shoe should look elsewhere, as the Glycerin GTS 21 prioritizes softness and stability over minimal weight and responsiveness for tempo performance.\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\u003eExceptional cushioning that stays soft yet responsive across runs.\u003c\/li\u003e\n\u003cli\u003eReliable GuideRails support that helps reduce excess motion and knee strain.\u003c\/li\u003e\n\u003cli\u003eComfortable, breathable warp knit upper and internal bootie for improved fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report mixed durability, so longevity may vary based on use and mileage.\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\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\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eRoad running, cross training, gym use\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 Glycerin GTS 21 is a great choice for runners seeking plush cushioning plus dependable support; it excels in comfort and stability and is particularly good for those with foot pain or wider feet. While some wearers note variable durability, the combination of DNA LOFT v3 softness and GuideRails support offers strong value for daily road miles and cross training.\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\u003eYes, customers report the warp knit upper and internal bootie accommodate wider feet comfortably.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they help with knee or foot pain?\u003c\/strong\u003e\u003cbr\u003eThe GuideRails support and plush cushioning have helped many users reduce knee strain and improve foot comfort.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre they suitable for racing?\u003c\/strong\u003e\u003cbr\u003eThey are designed for comfort and support rather than lightweight racing; choose a lighter model for race day.\u003c\/p\u003e","brand":"Brooks","offers":[{"title":"Default Title","offer_id":48746588504283,"sku":"B0CW6QPF6D","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71jbnBiBjtL._AC_SL1500_1690baa6-496d-4611-9547-456a75df9c48.jpg?v=1778764384","url":"https:\/\/gearmusthave.com\/products\/brooks-glycerin-gts-21-supportive-running-shoe-plush-support-shoes","provider":"GearMustHave","version":"1.0","type":"link"}