the following detailed description and the accompanying drawings to which it refers are intended to describe some , but not necessarily all , examples or embodiments of the invention . the described embodiments are to be considered , in all respects , as only illustrative and not restrictive . the contents of this detailed description and the accompanying drawings do not limit the scope of the invention in any way . fig1 and 1a show one example of a yoga mat device 10 of the present invention . in this example , the yoga mat device 10 comprises a yoga mat 12 having a storage compartment 14 attached to one end of the mat 12 . the storage compartment in this example comprises a flat base panel having a flexible pouch 16 mounted thereon . the pouch 16 may include a closure flap 18 with an optional flap retaining apparatus 20 which retains positioning of the closure flap 18 when in the closed position as seen in fig1 . as shown in fig1 a , the flap retaining apparatus 20 may comprise a first member 20 b on the flap 18 which is alternately engageable with and disengageable from a second member 20 b on the wall of the pouch 16 . disengagement of the first member 20 a from the second member 20 b allows the closure flap 18 to be moved to an open position as illustrated in fig1 a . it is to be appreciated that any number of storage compartment ( s ) 14 , which may be of the same or differing size and / or type , may be permanently or detachably attached to some of all ends and / or sides of the yoga mat . in an illustrative example , fig2 shows a yoga mat device which comprises a yoga mat 12 a having numerous storage compartments 14 a of varying size and / or type attached to both ends and both sides of the yoga mat 12 a so that the entire yoga mat is substantially surrounded by storage compartments . it is to be further appreciated that the yoga mat 12 may be of any suitable construction or type , including any of the yoga may designs or constructions disclosed in the patents and patent applications referenced and incorporated by reference above . optionally , regardless of the particular construction or design of the mat itself , a removable upper layer may be provided on the mat in accordance with the present invention . in this regard , the yoga mat 12 a seen in fig2 - 3a includes an optional removable upper layer 24 that is attached to the mat by way of connectors 26 . the removable upper layer 24 may comprise any suitable material , such as a disposable or washable material . examples of suitable materials include but are not limited to soft or absorbent paper , polymer , fabric material ( e . g ., paper towel , cotton fabric , polyester fabric , terry fabric , fleece , sherpa fleece , microfiber material , etc .). in embodiments where the removable upper layer 24 is intended to be disposed of rather than laundered , the user may remove , dispose of and replace the upper layer 24 when the upper layer 24 becomes soiled or otherwise in need of replacement . in embodiments where the upper layer 24 is formed of washable material intended to be laundered or otherwise cleaned , the user may remove , launder or otherwise clean and then reattach the upper layer 24 . as seen in fig3 and 4 , embodiments of the invention wherein the yoga mat has a removable upper layer 24 , the yoga mat may comprise a bottom portion 40 formed of a elastomeric polymer or other suitable material , the underside of which will preferably engage an underlying floor surface so as not to slip on the floor surface during use . the connectors 26 comprise first connector members 26 a on the upper surface of the bottom portion 40 are releasably engageable with corresponding second connectors 26 b on the underside of the removable upper surface 24 to firmly hold the upper surface 24 in place on the bottom portion 40 during use . preferably , the connectors 26 are positioned and constructed so as not to create hard areas , lumps or bumps in the yoga mat 12 a which would be uncomfortable to or cause interference with the user &# 39 ; s performance of yoga on the mat 12 a . at the same time , however , the connectors 26 will preferably hold the upper surface 24 in place without wrinkling , puckering or sliding of the upper surface 24 relative to the bottom portion 40 . in this regard connectors 26 comprising flat adhesive strips or flat strips of hook and loop ( velcro ) connector material may be advantageous for this application . in some embodiments , a temporary adhesive may present on all or part of the upper surface of the lower member and / or undersurface of the removable upper member 24 as an alternative to discrete individual connectors 26 . fig2 a through 2e show non - limiting examples of ways in which the storage compartment ( s ) 14 may be permanently or detachably connected to a yoga mat 12 . specifically , in fig2 a a storage compartment 14 b comprising a pocket with a closure flap is attached to a corner of a yoga mat 12 by snaps 28 . in fig2 b a similar storage compartment 14 c is attached laterally to an edge of a yoga mat 12 by a zipper 30 . in fig2 c a similar storage compartment 14 c is attached at its bottom end to an edge of a yoga mat by buttons 32 . in fig2 d , the top end of a similar storage compartment 14 e is permanently attached to an edge of a yoga mat 12 by a sewn seem or stitching 34 . in fig2 e a similar storage compartment 14 f is attached laterally to an edge of a yoga mat 12 by hook and loop fastener material ( velcro ) 36 . it is to be understood that the ways in which storage compartment ( s ) 14 may be attached to yoga mats according to the present invention are not limited to only the specific attachment means shown in these examples . any suitable attachment apparatus or material may be used , including where applicable the following : zippers , buttons , snaps ( metallic and plastic ), magnets , stitching , sewing , nails , staples , rings such as key rings , hooks ; slides , purse feet , swivel hooks , chains such as key chains , hook and eye connectors , dill fashion bubbles , screws , pins , wires , clasps , d - rings , buckles such as vest buckles , nickel eyelets , magnetic snaps , snap eyelets , needles , fork pins , hinges , tacks such as thumbtacks , clips such as bondage clips , paper clips or binder clips , blutac material , dress pins , notions , thread , ties : yarn , laces , trim , ribbons , safety pins , buckles ; snap buckles , knobs , cords , zip ties , tape such as cloth tape , glues such as hot melt glue , fabric glues and adhesives , heat & amp ; bond fabrics , gripper snaps , twine , string , rubber bands , heat sink , velcro dots , velcro tape , electrically charged surfaces or members that are electrically connected to one another , fasteners , grommets , third hand tools , rubber cement , clear gum , fabric fusion , welding , fusible bias , strap slides and rings , clear straps , cotton and polyester webbing , spiral binding , solder wire , uhu - glue , dowel , oxystrap , epoxy resins , masking tapes , duct tapes , gaffe tapes , double - sided tapes , comb bindings , bodog clips , pushpins , gums such as arabic gum or tarzan grips . also , the terms “ attached ” or “ connected ” as used in relation to the storage compartment ( s ) 14 of this invention include forming the storage compartments integrally or continuously with all or part of the yoga mat 12 such that the storage compartment ( s ) 14 and yoga mat 12 comprise a unitary ( e . g ., single or integrated ) structure which includes the storage compartment ( s ) 14 . fig4 a through 4i show various non - limiting examples of variations in the size , number , location and type of storage compartment ( s ) used on yoga mats of the present invention . specifically , fig4 a shows a yoga mat 12 with storage compartment 14 wherein the storage compartment 14 comprises sized to additionally function as a carrying case for the yoga mat . thus , during use of the yoga mat 12 , this storage compartment may be attached to one side of the yoga mat 12 as shown and used for storage of ancillary or personal items . after the user has completed a yoga session , the storage compartment may be detached from the mat 12 , the mat 12 may be rolled or folded and placed inside the storage compartment 14 so that the storage compartment 14 then acts as a carrying case for the mat 12 . in such embodiments where the storage compartment doubles as a carrying case , it may optionally include a handle , shoulder strap or other suitable accessory to facilitate carrying of the article . fig4 b shows yoga mat 12 having a plurality of storage compartments 14 on a common base member which is attached to one end of the yoga mat 12 . fig4 c shows yoga mat 12 having a single storage compartment 14 attached to a corner of the yoga mat 12 . fig4 d shows a yoga mat 12 having two separate storage compartments 14 attached at separate , spaced - apart locations on one end of the yoga mat 12 . fig4 e shows a yoga mat 12 having a storage compartments 14 attached to all four sides of the yoga mat . fig4 f shows a yoga mat 12 having a non - rectangular storage compartment 14 attached to one end of the yoga mat 12 . fig4 g shows a yoga mat 12 of the present invention having a plurality of non - rectangular storage compartments 14 attached to one end and portions of the two opposite sides of the yoga mat 12 . fig4 h shows a yoga mat 12 having a rigid box type storage compartment 14 attached to one end of the yoga mat 12 . fig4 i shows yoga mat 12 having a plurality of storage compartments 14 attached to opposite sides of the yoga mat 12 , wherein the storage compartments include flexible pouches of varying size as well as a rigid box - type storage compartment . it is to be appreciated that , although the invention has been described hereabove with reference to certain examples or embodiments of the invention , various additions , deletions , alterations and modifications may be made to those described examples and embodiments without departing from the intended spirit and scope of the invention . for example , any elements , steps , members , components , compositions , reactants , parts or portions of one embodiment or example may be incorporated into or used with another embodiment or example , unless otherwise specified or unless doing so would render that embodiment or example unsuitable for its intended use . also , where the steps of a method or process have been described or listed in a particular order , the order of such steps may be changed unless otherwise specified or unless doing so would render the method or process unsuitable for its intended purpose . additionally , the elements , steps , members , components , compositions , reactants , parts or portions of any invention or example described or shown herein may optionally exist or be utilized in the substantial absence of other elements , steps , members , components , compositions , reactants , parts or portions , unless otherwise specified . all reasonable additions , deletions , modifications and alterations are to be considered equivalents of the described examples and embodiments and are to be included within the scope of the following claims .
yoga mat devices which generally comprise a yoga mat having one or more storage compartment . also disclosed are related methods of manufacture and use of such devices .