what follows is a detailed description of the preferred embodiments of the invention in which the invention may be practiced . reference will be made to the attached drawings , and the information included in the drawings is part of this detailed description . the specific preferred embodiments of the invention , which will be described herein , are presented for exemplification purposes , and not for limitation purposes . it should be understood that structural and / or logical modifications could be made by someone of ordinary skills in the art without departing from the scope of the invention . therefore , the scope of the invention is defined by the accompanying claims and their equivalents . for the following description , it can be assumed that most correspondingly labeled elements across the figures ( e . g ., 207 and 307 , etc .) possess the same characteristics and are subject to the same structure and function . if there is a difference between correspondingly labeled elements that is not pointed out , and this difference results in a non - corresponding structure or function of an element for a particular embodiment , then the conflicting description given for that particular embodiment shall govern . fig1 illustrates the side view of a suspension bridge 100 , as in the prior art . suspension bridges are typically supported by towers 101 , two abutments 102 , main cables 103 - a and suspender cables 103 - b from above , which may span the length of the bridge 100 and run vertically between the two abutments 102 . the force from traffic on the bridge deck 100 - a travels up the suspender cables 103 - b to the main cables 103 - a and is transferred to the towers 101 , which support most of the weight of the bridge deck 100 - a . the suspender cables 103 - b are under tension , and the tensile force 104 - a passes to the towers 101 . as the forces on the bridge deck 100 - a are transferred to the towers 101 , the towers 101 are put in compression and support is provided to the deck 100 - a . fig2 a illustrates a side view of an overlay 205 and an outer sole 207 of a suspension bridging shoe , according to an embodiment . a shoe upper is not shown for clarity . similarly to the suspension bridge 100 as shown in fig1 , the portion of the sole 207 between the forefoot 207 - a and the heel 207 - c , may be a flexible bridge 207 - b of the outer sole 207 ( hereinafter , “ outer sole ,” “ sole ,” or “ outsole ”). the flexible bridge 207 - b may act similarly as the suspension bridge 100 bridge deck 100 - a , and may be supported by an independent overlay 205 ( hereinafter , “ overlay ,” or “ upper saddle ” or “ wrap overlay ”). the flexible bridge 207 - b may be lifted up off the ground along the longitudinal arches of the foot 206 from above by the overlays 205 , which may have straps 205 - b . fig2 b illustrates a side view of an overlay 205 and an outer sole 207 of a suspension bridging shoe according to an embodiment and a suspension bridge 100 , as shown in fig1 , superimposed over the shoe depicting the analogous regions between the two . the straps 205 - b of the shoe overlay 205 may act similarly as the suspender cables 103 - b of the suspension bridge 100 , while the laces of the shoe ( as shown by 212 in fig2 c ) may act similarly as the main cables 103 - a of the suspension bridge 100 . the flexible bridge 207 - b of the shoe may act similarly as the bridge deck 100 - a of the suspension bridge 100 . the forefoot portion 207 - a and the heel portion 207 - c of the outer sole 207 may each have a point of contact with the ground , 207 - aa and 207 - cc , respectively , which act similarly as the foundations of the bridge &# 39 ; s towers 101 , supporting the foot 206 by taking the force from the flexible bridge 207 - b resulting from the runner &# 39 ; s weight and forces required to lift the foot arch off the ground 220 . fig2 c illustrates a top view of the anchoring system of a suspension bridging shoe , according to an embodiment . again , the laces 212 may act similarly as the main cables 103 - a of the suspension bridge 100 . the laces 212 may be anchored at the loop anchor 214 and at two pairs of eyelets 213 - a in the collar anchor 206 . the loop anchor 214 and the eyelets 213 - a may form anchor points that may secure the shoe to the foot 206 , which may be similar to the way the main cables 103 - a are anchored to the two towers 101 of a suspension bridge 100 . additional anchoring to the foot may be provided by the grip of the overlay 205 around the foot 206 . fig3 illustrates a bottom view of the suspension bridging shoe of fig2 , according to an embodiment . as an example , the overlay 305 may be attached to the outer sole 307 at the sides of the flexible bridge 307 - b . the flexible bridge 307 - b may lift off the ground to conform to the foot 306 . in a preferred embodiment , the flexible bridge 307 - b may be curved inwards , as shown , to be narrower than the foot 306 on both the lateral 306 - b and medial 306 - a sides , allowing the foot 306 to be exposed on both sides . the exposed lateral 306 - b and medial 306 - a sides of the foot may allow for a full 360 degrees of a “ full wrap effect ” arch support by the overlay 305 , which may apply pressure all around both the medial and lateral arches of the foot 306 . the overlay 305 may be secured with , for example , laces , threading through gillie loops 305 - a . the forefoot region 307 - a may include a roomy toe box which may help to mimic barefoot running fig4 a - b illustrate a lateral side view and a medial side view , respectively , of how the laces 412 may connect to the movable overlay 405 of the suspension bridging shoe of fig2 a worn on a foot 406 . fig4 c illustrates a front - perspective view of how the laces 412 may connect to the movable overlay 405 of the suspension bridging shoe of fig2 a worn on a foot . the ends of the overlay straps 405 - b may have gillie loops 405 - a , through which laces 412 can be threaded . the laces 412 may serve a similar function as the main cables 103 - a of the suspension bridge 100 . the laces 412 may be tied on top of the foot 406 to secure and pull in the overlay 405 resulting in both arch support and the shoe &# 39 ; s anchoring system , which allows for a roomy toe box to facilitate forefoot - striking running fig5 illustrates a front - perspective view of a suspension bridging shoe 511 , with a detailed enlargement 509 - b of an overlay 505 and an overlay sleeve 510 - a as shown in 509 - a , according to an embodiment . the shoe upper 510 may include sleeves 510 - a through which the overlay 505 may thread , such that the upper 510 , overlay 505 , and sole 507 are held together . the overlay 505 and sole 507 may be attached by any means known in the art , such as by stitching or gluing together . the detailed enlargement 509 - b illustrates the strap of the overlay 505 - b inserted into the sleeve 510 - a of the shoe upper 510 . the strap 505 - b may move through the sleeve 510 - a as illustrated by 518 , such that a snug fit may be achieved for the wearer . the shoe 511 may use laces 512 to secure the overlay 505 , which may thread through a loop anchor 514 attached to the shoe upper 510 . the loop anchor 514 may be independent of the overlay 505 , so as to hold the laces 512 in place and to avoid the laces 512 traveling upwards on top of the foot . the laces 512 may thread through gillie loops 505 - a of the overlay , and may be tied to secure the shoe to the foot . the laces 512 may be tied after threading through the gillie loops 505 - a , or after threading through the gillie loops 505 - a and also through an eyelet or pair of eyelets 513 - a of a collar anchor 513 . an advantage is that , when the laces 512 travel through both eyelets of the collar anchor 513 , tension may be put along the direction of the collar 513 to help securely anchor the shoe 511 . the shoe upper 510 may include the collar anchor 513 which may wrap around the wearer &# 39 ; s ankle and may be attached completely or partially to the shoe upper 510 by any means known in the art . in another embodiment , the collar anchor 513 may be independent of the shoe upper 510 . fig6 a illustrates an exploded front - perspective view of an overlay 605 and an outer sole 607 of the suspension bridging shoe of fig2 , which may be combined or attached 612 into one piece by any means known in the art , such as by stitching or gluing together . for example , the overlay 605 may extend from the lateral edges of the outer sole 607 . in a preferred embodiment , the overlay 605 may be associated with the outer sole 607 and wrapped around the foot from inside of the outer sole 607 . in another exemplary embodiment , the outer sole 607 may be held against the foot by the overlay 605 wrapping around the foot from outside of the outer sole 607 . fig6 b illustrates an exploded side view of a suspension bridging shoe comprising a shoe upper 610 and a sole 607 , and the shoe 611 fully assembled and laced . the shoe upper 610 may be inserted into the overlay 605 , which may be attached 612 to the sole 607 , and shoe is secured to the foot by the lacing system 512 . the overlay 605 , loop anchor 614 , and collar anchor 613 may be combined into one piece by any means known in the art . the shoe 611 may have a high toe spring 619 , such that the toes are lifted off of the ground 620 , in order to facilitate barefoot running . fig7 a - b illustrate a side perspective view and front perspective view , respectively , of a suspension bridging shoe 711 having a rounded lateral edge 719 of the sole 707 , according to an embodiment . the rounded edge 719 may allow for improved support for a forefoot - striking runner who lands with the lateral edge 719 - a of their foot on the ground 720 , as shown in fig7 b . it should be understood that a rounded edge may also be incorporated into the medial edge 719 - b , heel , or any other area of the shoe for improved comfort or support . it may be advantageous to set forth definitions of certain words and phrases used in this patent document . additional definitions are set forth throughout the detailed description . the term “ couple ” and its derivatives refer to any direct or indirect communication between two or more elements , whether or not those elements are in physical contact with one another . the terms “ include ” and “ comprise ,” as well as derivatives thereof , mean inclusion without limitation . the term “ or ” is inclusive , meaning and / or . the phrases “ associated with ” and “ associated therewith ,” as well as derivatives thereof , may mean to include , be included within , interconnect with , contain , be contained within , connect to or with , couple to or with , be communicable with , cooperate with , interleave , juxtapose , be proximate to , be bound to or with , have , have a property of , or the like . as used in this application , “ plurality ” means two or more . a “ set ” of items may include one or more of such items . whether in the written description or the claims , the terms “ comprising ,” “ including ,” “ carrying ,” “ having ,” “ containing ,” “ involving ,” and the like are to be understood to be open - ended , i . e ., to mean including but not limited to . only the transitional phrases “ consisting of ” and “ consisting essentially of ,” respectively , are closed or semi - closed transitional phrases with respect to claims . use of ordinal terms such as “ first ,” “ second ,” “ third ,” etc ., in the claims to modify a claim element does not by itself connote any priority , precedence or order of one claim element over another or the temporal order in which acts of a method are performed . these terms are used merely as labels to distinguish one claim element having a certain name from another element having a same name ( but for use of the ordinal term ) to distinguish the claim elements . as used in this application , “ and / or ” means that the listed items are alternatives , but the alternatives also include any combination of the listed items . unless otherwise indicated , all numbers expressing a characteristic , item , quantity , parameter , property , term , and so forth used in the present specification and claims are to be understood as being modified in all instances by the term “ about .” as used herein , the term “ about ” means that the characteristic , item , quantity , parameter , property , or term so qualified encompasses a range of plus or minus ten percent above and below the value of the stated characteristic , item , quantity , parameter , property , or term . accordingly , unless indicated to the contrary , the numerical parameters set forth in the specification and attached claims are approximations that may vary . throughout this description , the embodiments and examples shown should be considered as exemplars , rather than limitations on the apparatus and procedures disclosed or claimed . although many of the examples involve specific combinations of method acts or system elements , it should be understood that those acts and those elements may be combined in other ways to accomplish the same objectives . acts , elements and features discussed only in connection with one embodiment are not intended to be excluded from a similar role in other embodiments . the foregoing disclosure of the exemplary embodiments of the present invention has been presented for purposes of illustration and description . it is not intended to be exhaustive or to limit the invention to the precise forms disclosed . many variations and modifications of the embodiments described herein will be apparent to one of ordinary skill in the art in light of the above disclosure . the scope of the invention is to be defined only by the claims appended hereto , and by their equivalents . further , in describing representative embodiments of the present invention , the specification may have presented the method and / or process of the present invention as a particular sequence of steps . however , to the extent that the method or process does not rely on the particular order of steps set forth herein , the method or process should not be limited to the particular sequence of steps described . as one of ordinary skill in the art would appreciate , other sequences of steps may be possible . therefore , the particular order of the steps set forth in the specification should not be construed as limitations on the claims . in addition , the claims directed to the method and / or process of the present invention should not be limited to the performance of their steps in the order written , and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the present invention . although specific embodiments have been illustrated and described herein for the purpose of disclosing the preferred embodiments , someone of ordinary skills in the art will easily detect alternate embodiments and / or equivalent variations , which may be capable of achieving the same results , and which may be substituted for the specific embodiments illustrated and described herein without departing from the scope of the invention . therefore , the scope of this application is intended to cover alternate embodiments and / or equivalent variations of the specific embodiments illustrated and / or described herein . hence , the scope of the invention is defined by the accompanying claims and their equivalents . furthermore , each and every claim is incorporated as further disclosure into the specification and the claims are embodiment ( s ) of the invention .
a shoe that simulates barefoot running having an outer sole having a forefoot portion , a heel portion , and a flexible bridge portion , wherein the flexible bridge portion is curved inwards to be narrower than a foot on both the lateral and medial sides , wherein the flexible bridge conforms to the foot &# 39 ; s arch and is lifted off the ground when the shoe is tied onto the foot ; a wrap overlay associated with the flexible bridge and having at least a first strap and at least a second strap , which are tied atop a metatarsal area of the foot , such that to suspend the flexible bridge therefrom and provide a 360 degrees wrap of the foot in the arch section of the foot , resulting in both , arch support and the shoe &# 39 ; s anchoring to the foot ; and , a roomy toe box providing toe splay and facilitating forefoot - striking