Super soft. Supportive. Sleek. Now that's a powerful trio. Featuring more plush cushioning than before, our innovative whole-body support system, and streamlined style, the Glycerin StealthFit GTS 21 women's running shoe is ready for anything.
We are committed to a long-term, science-based approach to sustainability. We know it's time to think bigger about the impact our products and their full life cycle have on people and the planet.
Percentage of recycled content
This metric refers to the percentage of material by weight that has been recycled from post- or pre-consumer sources.
Number of plastic bottles
Our roadmap to use recycled raw materials initially focuses on post-consumer sources, such as plastic bottles.
With help from our suppliers, we calculate the number of plastic bottles used to make a size medium of each product.
Climate action
We are using sound science to address climate change and align our efforts across every level of our business to reduce carbon emissions. This includes product designs, materialization, manufacturing, and our global supply chain.
As we create new gear and run our global business, we also want to minimize our impact on the planet — so we are limiting our reliance on non-renewable resources by using more sustainable materials and reducing waste.
An ethical global supply chain starts with factories and suppliers who share our values and our commitments to respect human rights, advance worker well-being and ensure sustainable manufacturing.
Experience luxuriously soft landings with powerful toe-offs.
Support
Neutral
Support
Maximum support
APMA Seal of Acceptance
APMA Seal of Acceptance
The American Podiatry Medical Association (APMA) Seal of Acceptance recognizes products that promote good foot health. At Brooks, products across seven of our key franchises feature the APMA Seal of Acceptance. This Achievement highlights our leadership in biomechanical research for runners and anyone who spends extended time on their feet.
Best running shoes ever! My Son told me to try Brooks; glad I did! Was on sale which was another plus!😊😊
Darlene K
Rated 1 out of 5
Mar 18, 2025
They hurt my feet it gave me a corn between from rubbing together dr told me I need a wider sneaker
Deirdre W
Rated 5 out of 5
Mar 16, 2025
I was having some issues with my right foot so I thought I would try Glycerin StealthFit 21. As soon as I put on a pair it had me. Thy are so cushiony and the comfort is the best and it has helped with my foot issue. I also work in a school and the concrete floor is not friendly to your feet. It was over a year go when I purchased my 1st pair. I just received my 3 rd pair.
Sherry M
Rated 1 out of 5
Mar 14, 2025
Back tab from the devil!
The tab on the back rubbed blisters that were bleeding by the time I got back from my run. It took two weeks of bandages and care to be able to run without pain again. The tab goes into the shoe and my socks slipped just enough. The tab is a rough material that scratched and rubbed at the skin. I had a pair of glycerin gts 21 previously and loved them and thought I would love these as well.
Beth W
Rated 3 out of 5
Mar 13, 2025
No tongue = too tight
The tongue is stretchy material that’s part of the upper instead of an independent tongue, making it impossible to loosen the shoe. Tight shoes give me plantar fascia pain. Even after removing the laces the shoe too tight. I will not buy this shoe again.
Katherine W
Rated 5 out of 5
Mar 12, 2025
Very comfortable! I have never tried the stealthfit, and was surprised with the lightweight feel and the stretch in the width. I continue to try various styles of Brooks shoes for walking and knee arthritis support.
Anne Marie S
Rated 5 out of 5
Mar 12, 2025
My new favorite shoe! It is so comfortable!
Alice P
Rated 5 out of 5
Mar 12, 2025
Perfect for me.
Not having a shoe tongue is new to me, but I like it. I love this newer design. I have a high arch, narrow heal, and I need a wide toe box for my toes . This shoe fits me comfortably as it checks off all my needs in a running shoe. I would buy this shoe again!!
Robin C
Rated 5 out of 5
Mar 12, 2025
Would buy again
Love this shoe fits like a glove comfortable nice for walking good support
Penny R
Rated 5 out of 5
Mar 12, 2025
Put them on and wore them all day. Good support & comfortable
Comfortable! Tried too order another pair in black they are out of stock, was told a # 24 new one will be out in April.
Carol E
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Super soft. Supportive. Super sleek.
Cushy comfort
Supreme softness
Compared to the Glycerin 20, the Glycerin 21 features 2mm more of our super-soft, nitrogen-infused DNA LOFT v3 cushioning to maximize softness.
Sleek & stealthy feel
Updated adaptable fit
Updated, soft flat knit upper offers a blend of stretch and compression that moves with your foot.
Stay in your stride
Smart support
Our innovative GuideRails™ technology supports your body in its natural motion path while keeping excess movement in check.