Impact attenuating devices and products containing such devices

摘要: An impact attenuating device includes both concave (102c) and convex (104c) side walls, e.g., in an interleaved arrangement, optionally at least partially surrounded by a restraining element that may help return the back to its original orientation after impact. Such devices be included pieces of footwear and/or other foot-receiving devices. Additionally, such or portions thereof freely selected interchanged piece device, based on one more characteristics intended user use, so as allow users obtain (or devices) customized targeted for use under predetermined set conditions.