Abstract: A weight training structure includes two exterior structures, a strut connected between the two exterior structures, two interior structures, and a lifting structure movably connected to the two interior structures and configured to support weight. Each exterior structure has a plurality of walls defining an internal portion. Each interior structure is positioned in the internal portion of and movably connected to one of the exterior structures. The lifting structure is movable between a raised position in which the lifting structure is not in contact with the two interior structures and a lowered position in which the lifting structure is in contact with the two interior structures forcing the two interior structures to move between an extended position and a retracted position in the internal portion of the two exterior structures. Other example embodiments of weight training structures, exterior structures, interior structures, lifting structures, etc. are also disclosed.

Abstract: The present invention provides a ventable ski hat for enabling a skier to selectively vent body heat, the ventable ski hat essentially comprising a superficial insulative fabric layer, a deep moisture-wicking fabric layer, zipper structure, a mesh fabric layer, and an insulative head band member. Together the superficial fabric layer and the deep fabric layer define a superior vent portion and an inferior crown-receiving portion. The superior vent portion comprises an anterior-superior portion, a posterior-superior portion and a selectively-ventable vent aperture. The zipper structure is located at the vent aperture for selectively venting the vent aperture. The zipper structure is medially aligned along a wearer's head in superior adjacency to the wearer's superior head surface, thus defining an insulative air layer. The zipper structure thus enables the wearer to selectively vent body heat from the insulative air layer.

Abstract: The present invention provides a ventable ski hat for enabling a skier to selectively vent body heat, the ventable ski hat essentially comprising a superficial insulative fabric layer, a deep moisture-wicking fabric layer, zipper structure, a mesh fabric layer, and an insulative head band member. Together the superficial fabric layer and the deep fabric layer define a superior vent portion and an inferior crown-receiving portion. The superior vent portion comprises an anterior-superior portion, a posterior-superior portion and a selectively-ventable vent aperture. The zipper structure is located at the vent aperture for selectively venting the vent aperture. The zipper structure is medially aligned along a wearer's head in superior adjacency to the wearer's superior head surface, thus defining an insulative air layer. The zipper structure thus enables the wearer to selectively vent body heat from the insulative air layer.