Underwear with Adaptive Leg Openings and Size-Adjusting Fabric-Regions

Abstract

Underwear for a human wearer, having adaptive leg openings and size-adjusting fabric-regions. A singular fabric- region of the undergarment is structured as a saddle, located beneath a crotch or gusset area, and extends downwardly along a portion of the upper inner right hip and the upper inner left hip. That fabric-region is formed of a fabric or yarns having a particular elasticity characteristic, that is different from the elasticity characteristics of other fabric-regions of that undergarment; and that provides an increased elasticity, and particularly an increased horizontal elasticity, to that saddle-structured fabric region.

1 . An undergarment for a wearer, comprising:
 a right-side tubular fabric-region, configured to cover an upper portion of a right hip of the wearer;   a left-side tubular fabric-region, configured to cover an upper portion of a left hip of the wearer;   a front-side fabric-region, configured to cover genitalia of the wearer;   a rear-side fabric-region, configured to cover at last part of buttocks of the wearer;   a waistband, configured to encircle a waist of the wearer;   wherein the right-side tubular fabric region comprises: an adjustable-size right-side fabric-member, that is configured to cover a part of an inner-upper region of a right thigh of the wearer;   wherein the left-side tubular fabric-region comprises: an adjustable-size left-side fabric-member, that is configured to cover a part of an inner-upper region of a left thigh of the wearer;   wherein the right-side tubular fabric-region and the left-side tubular fabric region are formed of a first type of fabric; wherein fabric-regions that are neighboring to the right-side tubular fabric-region or to the left-side tubular fabric-region are formed of a second, different, type of fabric.   
     
     
         2 . The undergarment according to  claim 1 ,
 wherein the first type of fabric has a first elasticity characteristic;   wherein the second type of fabric has a second, different, elasticity characteristic;   wherein the first elasticity level is at least 1.25 times the second elasticity characteristic.   
     
     
         3 . The undergarment according to  claim 1 ,
 wherein the first type of fabric has a first elasticity characteristic;   wherein the second type of fabric has a second, different, elasticity characteristic;   wherein the first elasticity level is at least 1.5 times the second elasticity characteristic.   
     
     
         4 . The undergarment according to  claim 1 ,
 wherein the first type of fabric has a first elasticity characteristic;   wherein the second type of fabric has a second, different, elasticity characteristic;   wherein the first elasticity level is at least 2 times the second elasticity characteristic.   
     
     
         5 . The undergarment according to  claim 1 ,
 wherein the first type of fabric has a first horizontal-elasticity characteristic;   wherein the second type of fabric has a second, different, horizontal-elasticity characteristic;   wherein the first horizontal-elasticity characteristic is at least 1.5 times the second horizontal-elasticity characteristic.   
     
     
         6 . The undergarment according to  claim 1 ,
 wherein the first type of fabric has a first horizontal-elasticity characteristic that enables the first type of fabric to horizontally stretch by at least 25 percent in response to a particular stretching force;   wherein the second type of fabric has a second horizontal-elasticity characteristic that enables the second type of fabric to horizontally stretch by not more than 12 percent in response to said particular stretching force.   
     
     
         7 . The undergarment according to  claim 1 .
 wherein the first type of fabric is configured to expand by M percent upon application of a particular stretching force;   wherein the second type of fabric is configured to expand by N percent upon application of said particular stretching force;   wherein M is at least 50 percent greater than N.   
     
     
         8 . The undergarment according to  claim 1 ,
 wherein the first type of fabric is mesh fabric;   wherein the second type of fabric is non-mesh fabric.   
     
     
         9 . The undergarment according to  claim 1 ,
 wherein the first type of fabric is formed of a first type of yarn;   wherein the second type of fabric is formed of a second, different, type of yarn;   wherein the first type of yarn has an elasticity characteristic that is at least 1.25 times an elasticity characteristic of the second type of yarn.   
     
     
         10 . The undergarment according to  claim 1 ,
 wherein the first type of fabric has a first particular knitting structure;   wherein the second type of fabric has a second, different, particular knitting structure.   
     
     
         11 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member is connected to the adjustable-size left-side fabric-member via a connection fabric-region that is formed of said first type of fabric, and that is configured to cover from beneath a crotch of the wearer.   
     
     
         12 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member has a trapezoid structure;   wherein the adjustable-size left-side fabric-member has a trapezoid structure.   
     
     
         13 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member has a triangular structure;   wherein the adjustable-size left-side fabric-member has a triangular structure.   
     
     
         14 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member comprises thermoplastic polyurethane (TPU) yarns;   wherein the adjustable-size left-side fabric-member comprises TPU yarns;   wherein fabric-regions, that are neighboring to the adjustable-size right-side fabric-member or to the adjustable-size left-side fabric-member, exclude any TPU yarn.   
     
     
         15 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member comprises elastomeric monofilament yarns;   wherein the adjustable-size left-side fabric-member comprises elastomeric monofilament yarns;   wherein fabric-regions, that are neighboring to the adjustable-size right-side fabric-member or to the adjustable-size left-side fabric-member, exclude any elastomeric monofilament yarn.   
     
     
         16 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member comprises hydrophobic yarns;   wherein the adjustable-size left-side fabric-member comprises hydrophobic yarns;   wherein fabric-regions, that are neighboring to the adjustable-size right-side fabric-member or to the adjustable-size left-side fabric-member, exclude any hydrophobic yarn.   
     
     
         17 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member comprises polyether-polyurea copolymer yarns;   wherein the adjustable-size left-side fabric-member comprises polyether-polyurea copolymer yarns;   wherein fabric-regions, that are neighboring to the adjustable-size right-side fabric-member or to the adjustable-size left-side fabric-member, exclude any polyether-polyurea copolymer yarn.   
     
     
         18 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member is formed of a yarn blend that comprises: 10 to 15 percent of polyether-polyurea copolymer yarns, and a remainder quantity of polyester yarns and/or cotton yarns;   wherein the adjustable-size left-side fabric-member is formed of a yarn blend that comprises: 10 to 15 percent of polyether-polyurea copolymer yarns, and a remainder quantity of polyester yarns and/or cotton yarns;   wherein fabric-regions, that are neighboring to the adjustable-size right-side fabric-member or to the adjustable-size left-side fabric-member, exclude any polyether-polyurea copolymer yarn.   
     
     
         19 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member is formed of a yarn blend that comprises: 10 to 15 percent of polyether-polyurea copolymer yarns, and a remainder quantity of polyester yarns and/or cotton yarns;   wherein the adjustable-size left-side fabric-member is formed of a yarn blend that comprises: 10 to 15 percent of polyether-polyurea copolymer yarns, and a remainder quantity of polyester yarns and/or cotton yarns;   wherein fabric-regions, that are neighboring to the adjustable-size right-side fabric-member or to the adjustable-size left-side fabric-member, comprise less than 5 percent of polyether-polyurea copolymer yarns.   
     
     
         20 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member has a plurality of ventilation holes;   wherein the adjustable-size left-side fabric-member has a plurality of ventilation holes;   wherein fabric-regions, that are neighboring to the adjustable-size right-side fabric-member or to the adjustable-size left-side fabric-member, exclude any ventilation holes.   
     
     
         21 . The undergarment according to  claim 1 ,
 wherein the adjustable-size right-side fabric-member and the adjustable-size left-side fabric-member are inter-connected via a central under-crotch adjustable-size fabric-member;   wherein the adjustable-size right-side fabric-member, and the adjustable-size left-side fabric-member, and the central under-crotch adjustable-size fabric-member, are structured as a singular adjustable-size saddle fabric-member, that has an elasticity characteristic that is different from elasticity characteristics of all other fabric-regions of said undergarment.