KNOW YOUR TECH breaks down the scientific technology used in your favorite sneakers and activewear. Let’s demystify your next purchase: today’s technology is Brooks Running PDRB. Short for Progressive Diagonal Rollbar, you'll find it labeled PDRB on Brooks products. Designed to help prevent overpronation, the Progressive Diagonal Rollbar is an essential stability feature. PDRB technology was most recently used in the Brooks PureCadence 2.

What is it? The Brooks Running Progressive Diagonal Rollbar is a tri-density midsole with an internal post that allows for pronation control and delivers a smooth transition from the midstance to propulsion phase. Ideal for runners who overpronate, you'll find Progressive Diagonal Rollbar technology in Brooks Running's stability shoes.

How does it work? Through multiple levels of material hardness, the Brooks Running Progressive Diagonal Rollbar adjusts the foot to a natural motion from heel to toe, helping the ankle from moving inwards during the gait cycle.

Notable products: Brooks Running Purecadence 2

Bottom line: Overpronators will be able to run more comfortably and efficiently with Brooks sneakers that feature Progressive Diagonal Rollbar technology.

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