# US 12,108,833 B2 · Pull-on boot > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,108,833 B2 - Document ID: US12108833B2 - Status: Granted - Kind: B2 - Application number: 16/875,221 - Filed: 2020-05-15 - Published: 2020-11-19 - Granted: 2024-10-08 - Earliest claimed: 2019-05-15 - Assignees: Red Wing Shoe Company, Inc. - Applicants: Red Wing Shoe Company, Inc. - Inventors: Craig Lee Feller; Justin David Behnke; Russell L. Davis - Web page: https://patentgrep.com/patent/US12108833B2 ## CPC - A43B 23/0205: {characterised by the material (material of the lining A43B23/07, material of toe stiffeners or heel stiffeners A43B23/08)} - A43B 23/047: {the gusset being elastic} - A43B 3/26: adjustable as to length or size - A43B 23/021: {Leather} - A43B 23/0235: {Different layers of different material} - A43B 23/0245: {characterised by the constructive form} - A43B 23/027: {with a part of the upper particularly flexible, e.g. permitting articulation or torsion} - A43B 23/0295: {Pieced uppers} - A43B: CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR ## Abstract The present disclosure provides a pull-on style boot that fits better for a larger number of people sharing the particular shoe size. The boot of the present disclosure has the ability to expand to adapt to the user's particular foot and lower leg geometry. The boot provides an improved dynamic and static fit and also facilitates foot entry and exit. ## Claims ### Claim 1 A boot comprising: a sole; an upper, the upper including a foot covering portion connected to the sole and a lower leg covering portion located above the foot covering portion; wherein the foot covering portion includes a toe covering portion, a heel covering portion, and an instep covering portion, the foot covering portion having a leather construction; wherein the lower leg covering portion includes a front portion configured to cover a portion of a user's shin, a medial side portion configured to cover a portion of the medial side of the user's calf and ankle, a lateral side portion configured to cover a portion of the lateral side of the user's calf and ankle, and a rear portion configured to cover a portion of the rear side of the user's calf and Achilles tendon, wherein the lower leg covering portion forms at least a part of a boot shaft that defines an opening for receiving a user's foot; expansion panels on each of the lateral and medial side portions of the lower leg covering portion, wherein each expansion panel includes a primary side panel constructed of leather and an expansion insert constructed of an elastic material, wherein the primary side panel constructed of leather is connected to the foot covering portion of the upper at a bottom portion of the primary side panel; wherein each of the medial side portion and the lateral side portion of the lower leg covering portion defines an arch-shaped edge in the shape of an upside down U, wherein each primary side panel constructed of leather also defines an arch-shaped edge in the shape of an upside down U, and wherein each expansion insert constructed of elastic material is positioned between and attached to both the arch-shaped edge defined by the lower leg covering portion and the arch-shaped edge defined by the primary side panel in a manner that allows the primary side panel to stretch away from the lower leg covering portion of the upper; and wherein a portion of each expansion insert extends below at least a portion of the instep covering portion defining an expandable instep portion. ### Claim 2 (depends on 1) The boot of claim 1, wherein the circumference of the lower leg portion can be stretched at least 1 inch and return back to its original un-stretched state. ### Claim 3 (depends on 2) The boot of claim 2, further comprising a lining, wherein the lining is configured to stretch to allow the circumference of the lower leg portion to increase at least 1 inch. ### Claim 4 (depends on 1) The boot of claim 1, wherein at least a top portion of the expandable instep portion can be displaced at least 0.25 inch from its original un-stretched state. ### Claim 5 A boot comprising: a sole; an upper, the upper including a foot covering portion connected to the sole and a lower leg covering portion located above the foot covering portion; wherein the foot covering portion includes a toe covering portion, a heel covering portion, and an instep covering portion; wherein the lower leg covering portion includes a front portion configured to cover a portion of a user's shin, a medial side portion configured to cover a portion of the medial side of the user's calf and ankle, a lateral side portion configured to cover a portion of the lateral side of the user's calf and ankle, and a rear portion configured to cover a portion of the rear side of the user's calf and Achilles tendon, wherein the lower leg covering portion forms at least a part of a boot shaft that defines an opening for receiving the user's foot; and a first expansion panel, the first expansion panel located on at least one of the medial side portion or the lateral side portion of the lower leg covering portion, the first expansion panel including a first side panel constructed of a first material and a first expansion insert constructed of a second material, the second material being more resilient than the first material, wherein the first side panel constructed of the first material is connected to the foot covering portion of the upper at a bottom portion of the first side panel, wherein at least one of the medial side portion and the lateral side portion of the lower leg covering portion defines an arch-shaped edge in the shape of an upside down U, wherein the first side panel constructed of the first material also defines an arch-shaped edge in the shape of an upside down U, and wherein the first expansion insert constructed of the second material is positioned between and attached to both the arch-shaped edge defined by the lower leg covering portion and the arch-shaped edge defined by the first side panel in a manner that allows the first side panel to stretch away from the lower leg covering portion of the upper. ### Claim 6 (depends on 5) The boot of claim 5, wherein the boot is a pull-on boot. ### Claim 7 (depends on 5) The boot of claim 5, further comprising a second expansion panel, the second expansion panel located on the medial side portion of the lower leg covering portion, the second expansion panel including a second side panel constructed of a first material and a second expansion insert constructed of a second material, wherein the second expansion insert is positioned between at least a portion of a periphery of the second side panel and the lower leg covering portion of the boot, the second material of the second expansion insert being more resilient than the first material of the second side panel, wherein the first expansion panel is located on the lateral side portion of the lower leg covering portion of the boot. ### Claim 8 (depends on 7) The boot of claim 7, wherein the first expansion insert is located on a front portion of the lateral side portion and extends below at least a portion of the instep covering portion and the second expansion insert is located on a front portion of the medial side portion and extends below at least a portion of the instep covering portion thereby defining an expandable instep portion between the first expansion insert and the second expansion insert. ### Claim 9 (depends on 5) The boot of claim 5, wherein the first material is inelastic. ### Claim 10 (depends on 5) The boot of claim 5, wherein the first material is leather. ### Claim 11 (depends on 5) The boot of claim 5, wherein the second material can be stretched to at least 150% of its original dimension and naturally return back to its original dimension. ### Claim 12 (depends on 5) The boot of claim 5, wherein the second material can be stretched to at least 200% of its original dimension and naturally return back to its original dimension. ### Claim 13 (depends on 5) The boot of claim 5, wherein the first side panel includes a front portion, an upper portion, a rear portion, and the bottom portion. ### Claim 14 (depends on 13) The boot of claim 13, wherein the bottom portion is connected to the foot covering portion, wherein the connection between the bottom portion and the foot covering portion is inelastic. ### Claim 15 (depends on 13) The boot of claim 13, wherein the first expansion insert is positioned between the lower leg portion and both of the front and rear portions of the first side panel. ### Claim 16 (depends on 15) The boot of claim 15, wherein the first expansion insert extends below a top portion of the instep portion of the foot covering portion. ### Claim 17 (depends on 16) The boot of claim 16, wherein the first expansion insert is positioned between the upper portion of the first side panel and the lower leg portion.