The Brooks Glycerin 21 is a good max-cushioned trainer with a supportive, deeply cushioned ride that's best suited to slow running. It doesn't have a very lively ride but it feels luxurious and has plush landings. The improved version 21 has a more comfortable but warmer knitted upper with a wider toe box. It has a softer, more cushioned ride than its predecessor due to 2 mm extra stack height.

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Timestamps:
00:00 - Introduction
00:27 - Updates
00:54 - Cushioning and Ride
02:24 - Upper Comfort and Fit
02:56 - Conclusions


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