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 the Under Armour 4D Foam footbed. This form-fitting insert is used in nearly all Under Armour performance sneakers, providing athletes from a range of sports with a comfortable and custom fit.

What is it? The 4D Foam footbed is Under Armour's proprietary footbed which is composed of molded 4D foam. The 4D Foam insert forms to exact shape of the wearer's foot, allowing for a more secure and comfortable fit. This not only helps to eliminate slipping and to provide a custom platform, but in baseball and football models, it helps to reduce the underfoot pressure from cleats.

How does it work? The Under Armour 4D Foam footbed works by conforming to the wearer's foot throughout use. After a short break-in period, 4D Foam adjusts to the shape and movements which are unique to the wearer.

Notable products: Under Armour Micro G Pulse, Under Armour Spine RPM, Under Armour SpeedForm

Bottom line: No matter what sport you play, there's nothing better than a custom, secure fit. Under Armour's 4D Foam footbed helps to provide that and more.

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