Abstract: An improved bicycle saddle is made of a dual density, closed-cell, polymeric foam laminate. The upper layer is a lower density (1.5 to 5 pcf), closed-cell, polymeric foam for comfort, absorbing minor impacts and distributing impact stress over a larger surface to reduce fatigue. The lower layer is a higher density (5 to 7.2 pcf), closed-cell, polymeric foam to absorb major impacts and add structural stability to the bicycle saddle. Cushioning pads may be added inside the bicycle saddle for customizing fit. The preferred material for the upper and lower layers of the laminated, dual density bicycle saddle is a nitrogen blown, cross-linked, closed-cell, polyethylene foam. The dual density, closed-cell, polymeric foam laminate of the bicycle saddle provides improved impact attenuation. The laminate also reduces the weight of the bicycle saddle, improves comfort and reduces neck fatigue for the user. The polyethylene foam laminate also exhibits improved recovery after an impact.

Abstract: An improved protective helmet is made of a dual density, closed-cell, polymeric foam laminate. The inner layer is a lower density (3.8 to 5 pcf), closed-cell, polymeric foam for comfort, absorbing minor impacts and distributing impact stress over a larger surface of the skull to reduce injury. The outer layer is a higher density (5 to 7.2 pcf), closed-cell, polymeric foam to absorb major impacts and add structural stability to the helmet. Ventilation holes provide airflow through the helmet. Cushioning pads may be added inside the helmet for customizing fit and improving ventilation. The preferred material for the inner and outer layers of the laminated, dual density protective helmet is a nitrogen blown, cross-linked, closed-cell, polyethylene foam. The dual density, closed-cell, polymeric foam laminate of the helmet provides improved impact attenuation. The laminate also reduces the weight of the helmet, which improves comfort and reduces neck fatigue for the wearer.

Abstract: An improved foldable stadium seat having a seat portion and a backrest. The stadium seat has adjustable hooks that can engage different width bleachers. The hooks also reverse to secure the backrest to the seat portion for easy carrying. The hooks have retention pins that engage securing holes to conveniently lock the hooks in their predetermined desired locations. The hooks can also serve as feet for an elevated chair for use on any flat surface.