A method for producing of a foot part for a sports shoe includes the steps of producing a flexible forming part for the shoe collar and shoe sole of the foot part, and joining the edges of the forming part along the shoe sole and around the toe cap. In addition, a foot part for a sports shoe and a sports shoe are provided. The foot part for a sports shoe includes a flexible forming part having edges joined along shoe soles and around a toe cap. The sports shoe includes the foot part.

An upper for a sports shoe may include a component such as a vamp or a rear portion. The shoe component may include a UV curable microlattice structure with a plurality of regions such that each region has a different density. In some cases, the microlattice structure may include a high density microlattice structure, a mid-level density microlattice structure, and a non-structural region with a low density microlattice structure.

An article of footwear includes an upper and an adjustable lacing system. The adjustable lacing system includes a plurality of fastener engaging elements located at the medial and lateral sides of the upper, where at least one of the medial side and the lateral side includes sets of fastener engaging elements. Each set of fastener engaging elements is distanced from another set in a direction transverse a lengthwise direction of the upper, and the fastener engaging elements are configured to engage with and retain a fastener structure that extends between the medial and lateral sides of the upper such that the fastener structure can be selectively engaged with different sets of fastener engaging elements to adjust a fit of the upper around a width of the foot disposed within the cavity.

An upper for an article of footwear and a method of manufacturing the upper for an article of footwear are disclosed. The upper incorporates a textile element with edges that are joined together to define at least a portion of a void for receiving a foot. The joined edges form a plurality of seams within the textile element, including a longitudinal seam extending on the lower region of the upper from a heel region to a forefoot region. Various warp knitting or weft knitting processes, including circular knitting, may be utilized to form the textile element.

An article of footwear includes an upper and an adjustable lacing system. The adjustable lacing system includes a plurality of fastener engaging elements located at the medial and lateral sides of the upper, where at least one of the medial side and the lateral side includes sets of fastener engaging elements. Each set of fastener engaging elements is distanced from another set in a direction transverse a lengthwise direction of the upper, and the fastener engaging elements are configured to engage with and retain a fastener structure that extends between the medial and lateral sides of the upper such that the fastener structure can be selectively engaged with different sets of fastener engaging elements to adjust a fit of the upper around a width of the foot disposed within the cavity.

An expandable support member for an article of footwear includes a plurality of expansion components that are joined together. The support member can be expandable between a contracted position and an expanded position. The plurality of expansion components are configured to expand along a non-linear path when the support member moves between the contracted position and the expanded position.

An article of footwear and a method of manufacturing the article of footwear are disclosed. The footwear may include an upper and a sole structure. The upper incorporates a textile element with edges that are joined together to define at least a portion of a void for receiving a foot. The textile element may also have a first area and a second area with a unitary construction with varying stitch configurations. The upper may also incorporate longitudinal ribs extending along the lateral and/or medial sides of the upper. Various warp knitting or weft knitting processes, including circular knitting, may be utilized to form the textile element.

Systems and devices are described for creating a more effective mechanical ventilation system for footwear. For example, a mechanical ventilation system can include an air reservoir that is almost as large as the entire shoe under the footwear's foot bed. In some examples, the air reservoir can be connected to an area that includes a foot of a user in the footwear. The air reservoir can be compressed using a movable part that circulates air in the footwear with every step. The movable part can be relatively small, extending into the air reservoir, and able to compress and inflate the air reservoir. Movement of the movable part can cause a large effective compressible area of the air reservoir to release fresh air near the toes of a foot to flush stale air out of the footwear.

Aspects herein include a knit component having one or more first knit courses and one or more second knit courses. One or more apertures are positioned between the one or more first knit courses and the one or more second knit courses. The one or more apertures may be formed by an activatable yarn type being exposed to a stimulus.

Various embodiments of protective footwear are disclosed with improved ventilation characteristics. The protective footwear includes a toe cap having a ventilation channel, and various other ventilation structures to improve heat-transfer properties of the footwear.