Abstract: A door system includes a corridor sized to allow humans to move through the corridor, the corridor having a first door located at a first end; a second door located at the second end; a controller operatively connected to the first and second doors for controlling the first and second doors; a first sensor oriented to detect an object on the floor, the first sensor operatively connected to the controller and a second sensor oriented to detect an object above the floor in the corridor wherein the second sensor is operatively connected to the controller and the controller is configured to one of: a) turn off the second sensor when the first sensor detects an object on the floor and b) not respond when the second sensor detects and object above the floor when the first sensor detects and object on the floor.

Abstract: A shoe may include various features to improve performance, increase manufacturing efficiency, and provide environmental benefits over traditional shoes. In some cases, a shoe includes an upper portion constructed from a continuous textile that includes multiple regions having different textile properties to improve the performance of the shoe, including durability and comfort. The upper portion may define a cuff region and a flex region adapted to expand to allow a wearer to put on the shoe and to contract to retain the shoe on the wearer's foot. The shoe may further include a heel retainer adapted to conform to a shape of the wearer's foot and retain the shoe on the wearer's foot. Eyelets of the shoe may be positioned along an external surface of the upper portion to improve comfort and simplify manufacturing.

Abstract: A shoe including a component formed at least in part from a recycled thermoplastic material is disclosed. The recycled thermoplastic material may be derived from scrap material from an operation of making another component of the shoe. The recycled thermoplastic material may be derived at least in part from scrap thermoplastic foam from an operation of making a sole component of the shoe, but the shoe component including the recycled thermoplastic material may have a density greater than that of the sole component. Both shoe components may be bio-based. Methods for making shoe components including the recycled thermoplastic material are also disclosed.

Abstract: A shoe may include an upper portion constructed from a continuous textile (e.g., a knit textile) that includes multiple regions having different textile properties to improve the performance of the shoe, including durability and comfort. In some cases, the multi-region upper portion may include regions having different thickness and/or flexibility based on a location relative to a wearer's foot to better support the wearer's foot. For example, the multi-region upper portion may include a reinforcement region having a first thickness and a flex region having a second thickness less than the first thickness. As another example, the multi-region upper portion may include a reinforcement region having a first stiffness and a flex region having a second stiffness less than the first stiffness.

Abstract: A shoe may include an upper portion constructed from a continuous textile (e.g., a knit textile) that includes an elastic region and a structural region. The elastic region may be positioned about a perimeter of an opening into a cavity configured to receive a wearer's foot, and the elastic region may be configured to secure the shoe to a wearer's foot. The elastic region may have a first elasticity that is greater than a second elasticity of the structural region. In an unworn configuration, the elastic region may cause a tread surface of a sole of the shoe to have a continuous curvature. In a worn configuration, substantially all of an intermediate section of the tread surface may contact a surface on which the shoe is placed. The elastic region may improve the performance of the shoe, including the comfort and durability.

Abstract: A shoe may include an upper portion constructed from a continuous textile (e.g., a knit textile) that includes multiple regions having different textile properties to improve the performance of the shoe, including durability and comfort. In some cases, the multi-region upper portion may include regions having different thickness and/or flexibility based on a location relative to a wearer's foot to better support the wearer's foot. For example, the multi-region upper portion may include a reinforcement region having a first thickness and a flex region having a second thickness less than the first thickness. As another example, the multi-region upper portion may include a reinforcement region having a first stiffness and a flex region having a second stiffness less than the first stiffness.

Abstract: A shoe may include an upper portion constructed from a continuous textile (e.g., a knit textile) that includes an elastic region and a structural region. The elastic region may be positioned about a perimeter of an opening into a cavity configured to receive a wearer's foot, and the elastic region may be configured to secure the shoe to a wearer's foot. The elastic region may have a first elasticity that is greater than a second elasticity of the structural region. In an unworn configuration, the elastic region may cause a tread surface of a sole of the shoe to have a continuous curvature. In a worn configuration, substantially all of an intermediate section of the tread surface may contact a surface on which the shoe is placed. The elastic region may improve the performance of the shoe, including the comfort and durability.

Abstract: A shoe may include various features to improve performance, increase manufacturing efficiency, and provide environmental benefits over traditional shoes. In some cases, a shoe includes an upper portion constructed from a continuous textile that includes multiple regions having different textile properties to improve the performance of the shoe, including durability and comfort. The upper portion may define a cuff region and a flex region adapted to expand to allow a wearer to put on the shoe and to contract to retain the shoe on the wearer's foot. The shoe may further include a heel retainer adapted to conform to a shape of the wearer's foot and retain the shoe on the wearer's foot. Eyelets of the shoe may be positioned along an external surface of the upper portion to improve comfort and simplify manufacturing.

Abstract: A shoe may include an upper portion constructed from a continuous textile (e.g., a knit textile) that includes multiple regions having different textile properties to improve the performance of the shoe, including durability and comfort. In some cases, the multi-region upper portion may include regions having different thickness and/or flexibility based on a location relative to a wearer's foot to better support the wearer's foot. For example, the multi-region upper portion may include a reinforcement region having a first thickness and a flex region having a second thickness less than the first thickness. As another example, the multi-region upper portion may include a reinforcement region having a first stiffness and a flex region having a second stiffness less than the first stiffness.

Abstract: A shoe may include an upper portion that includes one or more textile (e.g., wool) layers and one or more water-resistant membranes for providing or enhancing water resistance of the shoes. The water-resistant membranes may be positioned between the textile layers to provide or enhance water resistance without affecting the appearance and/or feel of the interior and exterior surfaces of the upper portion. The shoe may include a durable water repellent coating along at least a portion of an exterior surface for water resistance and durability. The shoes described herein may be constructed at least partially using bio-based materials.