Product Info

The 21st instalment of Brooks much-loved shoe, the Glycerin 21 StealthFit returns to deliver a distraction-free ride. Supremely soft and comfortable, these runners feature top-of-the-line soft cushioning, nitrogen-infused DNA LOFT v3, and a new knit upper to keep feet feeling great. The versatility of it’s build makes it ideal to build from 5km runs to long treks.

Features

• StealthFit knit upper creates an adaptive sock-like fit for premium comfort
• Nitrogen-infused DNA Loft v3 cushioning delivers smooth, consistent energy return across long runs
• Extra 2mm of DNA LOFT v3 has been added underfoot for increased cushioning
• Wide platform helps stabilise your foot and promote smooth heel-to-toe transitions
• Lightweight and durable RoadTack rubber

Show Size Guide



Hide Size Guide

document.addEventListener(“DOMContentLoaded”, (event) = {
sizeGuideFunctions();
});

function sizeGuideFunctions() {
$(“.sg-btn”).on(“click”, function() {
var $btnClicked = $(this);
var sizeGuideParent = $btnClicked.closest(‘#size-guide-rebel’);
var sizeGuideTarget = $btnClicked.data(“target”);
sizeGuideParent.find(“.sg-btn, .sg-dropdown, .sg-style-dropdown”).addClass(“d-none”);
sizeGuideParent.find(“.sg-btn”).removeClass(“active”);
sizeGuideParent.find(“#” + sizeGuideTarget).removeClass(“d-none”);
sizeGuideParent.find(“.sg-btn-back”).removeClass(“d-none”);
});

$(“.sg-btn-back”).on(“click”, function() {
$(“.sg-btn”).removeClass(“d-none”);
$(“.sg-btn-back, .sg-dropdown, .sg-style-dropdown”).addClass(“d-none”);
});

$(“.sg-btn-style”).on(“click”, function() {
var $btnClicked = $(this);
var sizeGuideParent = $btnClicked.closest(‘#size-guide-rebel’);
var sizeGuideTarget = $btnClicked.data(“target”);
sizeGuideParent.find(“.sg-style-dropdown”).addClass(“d-none”);
sizeGuideParent.find(“#” + sizeGuideTarget).removeClass(“d-none”);
sizeGuideParent.find(“.sg-btn-style”).removeClass(“active”);
$btnClicked.addClass(“active”);
});

}

try {
sizeGuideFunctions();
} catch (error) {
}

document.addEventListener(“DOMContentLoaded”, (event) = {
sizeGuideToggles();
});

try {
sizeGuideToggles();
} catch (error) {
}

function sizeGuideToggles() {

$(“.sg-toggle”).click(() = $(“.sg-cm-m, .sg-inch-m,.sg-cm-w, .sg-inch-w,.sg-cm-k, .sg-inch-k, .sg-text”).toggleClass(“d-none”));

$(“.sg-cm-m”).each(function () {
var cmValue = parseFloat($(this).text());
var inchValue = cmValue * 0.39370079;
var roundedValue = inchValue.toFixed(1);
$(“.sg-inch-m”).eq($(this).index(“.sg-cm-m”)).text(roundedValue);
});

$(“.sg-cm-w”).each(function () {
var cmValue = parseFloat($(this).text());
var inchValue = cmValue * 0.39370079;
var roundedValue = inchValue.toFixed(1);
$(“.sg-inch-w”).eq($(this).index(“.sg-cm-w”)).text(roundedValue);
});

$(“.sg-cm-k”).each(function () {
var cmValue = parseFloat($(this).text());
var inchValue = cmValue * 0.39370079;
var roundedValue = inchValue.toFixed(1);
$(“.sg-inch-k”).eq($(this).index(“.sg-cm-k”)).text(roundedValue);
});

}

BROOKS SIZE GUIDE

Mens
Womens
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Mens Footwear

Shoe sizes on product details pages are in US shoe size. Your foot length (in cm) will be different than the CM size on your shoe box. CM size refers to a sizing system, like US, UK, EUR, and should not be confused with the length of the foot

US MEN	3.5	4	4.5	5	5.5	6	6.6	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	12.5	13	14	15	16
US WOMEN	5	5.5	6	6.7	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	12.5	13
UK MEN	2.5	3	3.5	4	4.5	5	5.5	6	6.5	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	13	14	15
UK WOMEN	3	3.5	4	4.5	5	5.5	6	6.5	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	13	14	15
EU	35	36	36.5	37.5	38	38.5	39	40	40.5	41	42	42.5	43	44	45	45.5	46	46.5	47.5	48.5	49.5	50.5
CM	22	22.5	23	23.5	24	24.5	25	25.5	26	26.5	27	27.5	28	28.5	29	29.5	30	30.5	31	31.5	32	33	34
INCH	8.7	8.9	9.1	9.3	9.5	9.7	9.8	10	10.2	10.4	10.6	10.8	11	11.2	11.4	11.6	11.8	12	12.2	12.4	12.6	13	13.4

Fitment Guide – Footwear

1. Heel to Toe
On your foot measure from the middle of the heel to the longest toe for each foot. If one foot is longer than the other take the longest measurement and round up or down to the closest 2mm.

Womens Footwear

Shoe sizes on product details pages are in US shoe size. Your foot length (in cm) will be different than the CM size on your shoe box. CM size refers to a sizing system, like US, UK, EUR, and should not be confused with the length of the foot

US MEN	3.5	4	4.5	5	5.5	6	6.6	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	12.5	13	14	15	16
US WOMEN	5	5.5	6	6.7	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	12.5	13
UK MEN	2.5	3	3.5	4	4.5	5	5.5	6	6.5	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	13	14	15
UK WOMEN	3	3.5	4	4.5	5	5.5	6	6.5	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	13	14	15
EU	35	36	36.5	37.5	38	38.5	39	40	40.5	41	42	42.5	43	44	45	45.5	46	46.5	47.5	48.5	49.5	50.5
CM	22	22.5	23	23.5	24	24.5	25	25.5	26	26.5	27	27.5	28	28.5	29	29.5	30	30.5	31	31.5	32	33	34
INCH	8.7	8.9	9.1	9.3	9.5	9.7	9.8	10	10.2	10.4	10.6	10.8	11	11.2	11.4	11.6	11.8	12	12.2	12.4	12.6	13	13.4

Fitment Guide – Footwear

1. Heel to Toe
On your foot measure from the middle of the heel to the longest toe for each foot. If one foot is longer than the other take the longest measurement and round up or down to the closest 2mm.