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A pressure regulated structure includes a first layer, a second layer, a non-metallic honeycomb assembly, and a vent. The honeycomb assembly is between the first layer and the second layer and includes a plurality of walls forming cells, at least some of the walls including laser-formed apertures to

A pressure regulated structure includes a first layer, a second layer, a non-metallic honeycomb assembly, and a vent. The honeycomb assembly is between the first layer and the second layer and includes a plurality of walls forming cells, at least some of the walls including laser-formed apertures to allow fluid communication between cells. The vent is fluidly coupled to the honeycomb assembly, wherein fluid in the cells of the honeycomb assembly may be removed through the vent to decrease pressure in the structure.

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A pressure regulated structure includes a first layer, a second layer, a non-metallic honeycomb assembly, and a vent. The honeycomb assembly is between the first layer and the second layer and includes a plurality of walls forming cells, at least some of the walls including laser-formed apertures to

A pressure regulated structure includes a first layer, a second layer, a non-metallic honeycomb assembly, and a vent. The honeycomb assembly is between the first layer and the second layer and includes a plurality of walls forming cells, at least some of the walls including laser-formed apertures to allow fluid communication between cells. The vent is fluidly coupled to the honeycomb assembly, wherein fluid in the cells of the honeycomb assembly may be removed through the vent to decrease pressure in the structure. ons for More Comprehensive Measurement Approach", International Journal of Sports Medicine, vol. 8, pp. 196-202 1987. Nigg et al., >> The Influence of Lateral Heel Flare of Running Shoes on Protraction and Impact Forces >>, Medicine and Science in Sports and Exercise, vol. 19, No. 3, pp. 294-302 1987. Nigg, > Medicine and Sport Science, vol. 23, pp 22-29 1987. The Complete Handbook of Athletic Footwear, Entire book, 1987. Saucony Spot-bilt shoe, The Complete Handbook of Athletic Footwear, pp 332, 1987. Puma basketball shoe, The Complete Handbook of Athletic Footwear, pp 315, 1987. Adidas shoe, Model, > 1987. Adidas Catalog, 1987. Adidas Catalog, Spring 1987. Nike Fall Catalog 1987, pp 50-51. Footwear Journal, Nike Advertisement, Aug. 1987. Sporting Goods Business, Aug. 1987. Nigg et al., "Influence of Hell Flare and Midsole Construction on Pronation" Internationial Journal of Sport Biomechanics, vol. 4, No. 3, pp 205-219, (1987). Vagenas et al., << Evaluationm of Rearfoot Asymmetrics in Running With Worn and New Running Sh