Is it us, or did the Earth get softer!? Oh, it's just the incredible cushioning of the new Glycerin 16 with DNA Loft technology. We at JackRabbit agree with Brooks when they say that running can change everything for the better - so get out there, and Run Happy! The Glycerin 16 is the latest update to Brooks' most cushioned shoe - and it's now even softer thanks to DNA Loft. It’s their softest, yet most durable cushioning yet. You’ll feel like you can run farther, more comfortably—plenty of time to ponder life’s big questions.