The present disclosure generally relates to shoes configured to receive custom fit orthotics and techniques and methods for preparing the same. In some embodiments, the disclosed methods relate to the production of a custom orthotic insole in conjunction with the use of a proprietary last to produce a custom fit shoe from a non-unique last.

Techniques for recommending footwear based on scan data describing feet of a user and a variety of other information are described. In some instances, a footwear service may obtain scan data describing feet of a user. The footwear service may process the scan data to generate a 3D representation of the user's feet, such as a 3D model or other representation. The footwear service may also obtain other information about the user, such as user preferences, orthotics data, information identifying an activity that the user participates in and so on. The footwear service may determine a footwear recommendation for the user based on the 3D representation of the user's feet, footwear data describing a footwear item, the user preferences and/or other information.

Capturing three-dimensional images of feet and arraying them against vast databases of stored shoe data enables better developed matching with desired fittings than conventional systems. Smartphone/iPhone/digital camera and related interface tools supported by proprietary data streams and engines recommend better shoe choices from plethoric offerings updated continually and based upon legacy shoe data along with new ways to compare and select shoes.

A device includes a first arm, a second arm, and a lateral arm. The first arm may include a first length, a first socket disposed at a distal end, and a length fit indicator disposed at a proximal end. The second arm may include a second length, a first indication ball disposed at a distal end, and a first insertion point able to couple with the first socket. In addition, the second arm may include a second socket. The lateral arm may comprise a third length, a second indication ball, and a second insertion point to couple with the second socket.

Adjustable shoe fit evaluators and methods of using adjustable shoe fit evaluators are disclosed. Adjustable shoe fit evaluators have components that include a main body portion, a multifunctional arm, at least one cross arm, and an indicator component. The main body portion includes at least one longitudinal pathway and at least one cross pathway. The multifunctional arm has a multifunctional arm insertion end that is removably slidably received within at least one of the at least one longitudinal pathway and the at least one cross pathway. The at least one cross arm has a cross arm insertion end that is removably slidably received within the at least one cross pathway. The indicator component is attached to a connector arm that is removably slidably received within the at least one longitudinal pathway at the distal end of the main body portion.

A method and system for activity classification. A pressure sensor receives input data resulting from physical activity of a subject performing an activity. The input data includes pressure data from at least one pressure sensor, and may include other data acquired through other types of sensors. A deep learning neural network is applied to the input data for identifying the activity. The neural network is trained with reference to training data from a training database. The training data may include empirical data from a database of previous data of corresponding activities, synthesized data prepared from the empirical data or simulated data. The training data may include data from physical activity of the subject being monitored by the system. Different aspects of the neural network may be trained with reference to the training data, and some aspects may be locked or opened depending on the application and the circumstances.

A device for measuring a human foot, the device comprising: a first member for abutting against a first portion of the foot; a second member for abutting against a second portion of the foot, the second member opposing the first member; and a measuring tape, wherein a proximal end of the measuring tape is coupled to the first member and a distal end of the measuring tape is coupled to the second member, the measuring tape being extendable from and retractable into the first member; wherein the measuring tape comprises measurement indicia along at least part of the length of the tape; and wherein the first member comprises a window through which a portion of the measurement indicia, representative of the extent of extension of the measuring tape from the first member, is visible in use. A method of using such a device, and for obtaining correctly-fitting footwear as a result, are also provided.