
Brooks' most popular running shoe is the Ghost, but the Brooks Glycerin 21 is a great alternative. It’s designed for similar types of runs as the Ghost but also aims for a luxurious feel when you need to eat up that running mileage regularly.
The Glycerin 21 focuses on retaining that feel of the Glycerin 20 to make it a great option and has now added more cushioning while dropping the overall weight of the shoe. It’s also reworked the upper and outsole to make it a more comfortable and durable installment of the Glycerin.