Abstract: Systems of the present disclosure can provide a head-mountable device with a head securement element that allows a user to adjust how the head securement element fits near the ears of the user. Examples of adjustment mechanisms described herein allow a user to control the size, shape, flexibility, and/or position of certain regions of the head securement element with respect to the ears of the user. Accordingly, the user can select a configuration that distributes forces evenly, maximizes comfort, and allows the user to enjoy the head-mountable device for longer durations of time.

Abstract: Systems of the present disclosure can provide a head-mountable device that distributes forces along the user's head. A head-mountable device can include head securement element with a support element to engage the head of the user. The support element can be coupled to the frame or light seal module of the head-mountable device. The support element can be attachable or deployable from the head-mountable device. A head-mountable device can also distribute forces with a support portion extending from a band.

Abstract: A device includes a device housing, a facial interface, a support structure, content display components, and an impact mitigation structure that is configured to mitigate an impact with an external structure.

Abstract: A head-mountable device can include adaptable components, which move to comfortably engage the face of the user and to exclude light from an external environment. A head-mountable device can include a light seal element that includes discrete portions that rotate relative to each other and to a user. Such mobility allows the portions to be oriented with respect to corresponding regions of the face, so that an engagement surface of each portion directly engages the corresponding region of the face to maximize the surface area of contact.

Abstract: A head-mountable device can include modules that provide fit adjustment capabilities when assembled together. By providing a head-mountable device with modular features, certain modules can provide fit adjustment capabilities without requiring other modules to be custom designed or available in a wide variety of sizes and/or shapes. The head-mountable device and/or other electronic devices can be operated to guide a user to select the optimal light seal module for use with an HMD module. For example, the head-mountable device or another device can include sensors for detecting features of the user's face, forces distributed on the face when worn, and/or entry of light from an external environment.