DETAILED DESCRIPTION OF THE INVENTION

[0016] FIG. 1 depicts a conventional wader 15 . The wader 15 shown by FIG. 1 covers a user's body from his or her chest to his or her feet and is supported by a pair of suspenders 17 . Furthermore, the wader 15 is comprised of waterproof material. Therefore, the user may wade into water up to his or her chest with the wader 15 isolating the user's body from the water.

[0017] The water that the user wades through is typically cold, and the user may desire to have his or her legs thermally insulated, to a degree, from the cold water. The portions of the wader 15 covering the user's legs provide some thermal insulation. Note that the portions of the wader 15 covering the user's legs will be referred to hereafter as “wader legs 19 .” However, the amount of thermal insulation desired may change depending on environmental conditions, which often vary. Thus, the wader legs 19 are not typically designed to provide significant thermal insulation allowing the user to control the amount of thermal insulation between the water and his or her legs by wearing garments (e.g., pants) of his or her choosing underneath the wader legs 19 .

[0018] Environmental conditions may change after the user has donned the wader 15 . Indeed, in many circumstances, the user may wish to remove one or more leg garments due to rising environmental temperatures. Unfortunately, to remove such garments, the user usually must remove the wader 15 first, and the process of removing and donning the wader 15 is often a burdensome task.

[0019] FIG. 2 depicts a wader 30 having wader legs 33 in accordance with an exemplary embodiment of the present invention. The wader 30 may be identical to the conventional wader 15 depicted in FIG. 1 except that the wader 30 of the present invention includes one or more leg insulators 36 inserted within the wader legs 33 . Each leg insulator 36 covers a portion of one of the user's legs and provides the user's leg with additional thermal insulation.

[0020] In the preferred embodiment, each leg insulator 36 extends from the front of a user's leg to at least the back of the user's same leg, although it is possible for one or more of the leg insulators 36 to cover different portions of the user's leg in other embodiments. An exemplary three-dimensional view and a top view of a leg insulator 36 in accordance with the preferred embodiment are respectively shown via FIGS. 3 and 4 . The leg insulators 36 may be comprised of any material or combination of materials. However, it may be desirable for the leg insulators 36 to be comprised of a flexible and comfortable material, such as wool, for example, that also provides significant thermal insulation.

[0021] In the preferred embodiment, each leg insulator 36 is detachably coupled to the inner portion of one of the wader legs 33 via one or more attachment mechanisms 39 . The attachment mechanisms 39 may be any suitable devices for detachably coupling a leg insulator 36 to the inner portion of a wader leg 33 . An example of a suitable attachment mechanism 39 is a velcro strip. In such an example, the inner portion of a wader leg 33 where a leg insulator 36 is to be detachably coupled includes a velcro strip that adheres to the attachment mechanism 39 when the attachment mechanism 39 is engaged with the velcro strip of the wader leg 33 . In another example, the attachment mechanism 39 may be implemented as a hook or a hoop. In this regard, the inner portion of the wader leg 33 may include a hook that may be passed through the attachment mechanism 39 , which in this case is implemented as a hoop, in order to detachably couple the leg insulator 36 to the wader leg 33 . Alternatively, the inner portion of the wader leg 33 may include a hoop, and the attachment mechanism 39 , which in this case is implemented as a hook, may be passed through the hoop in order to detachably couple the leg insulator 36 to the wader leg 33 . Note that the attachment mechanism 39 may be employed via other types of devices in other embodiments.

[0022] It should also be noted that the attachment mechanisms 39 are not necessary features of the present invention and may be removed, if desired. In this regard, the leg insulators 36 may be positioned within the wader legs 33 without detachably coupling the leg insulators 36 to the wader legs 33 . When the user walks into water, the pressure exerted on the user's legs from the water generally holds the leg insulators 36 in place relative to the wader legs 33 and to the user's legs. Furthermore, in alternative embodiments, the leg insulators 36 may be detachably attached to the user's legs instead of the wader legs 33 . For example, a belt (not shown) wrapped around the upper portion of a leg insulator 36 and a user's leg may be utilized to secure the leg insulator 36 to the user's leg.

[0023] As shown, by FIGS. 2-4 , the preferred embodiment of the wader 30 includes multiple attachment mechanisms 39 located at the top of each leg insulator 36 and multiple attachment mechanisms 39 located at the bottom of each leg insulator 36 . However, other numbers and positions of the attachment mechanisms 39 can be employed without departing from the principles of the present invention. Indeed, as set forth above, it is not necessary for the attachment mechanisms 39 to even be employed in implementing the present invention.

[0024] If the user becomes uncomfortably warm while wearing the wader 30 , the user may remove one or more of the leg insulators 36 . This can be conveniently accomplished while the user's legs are still in the wader legs 33 . In this regard, the user may simply grab the top of a leg insulator 36 and pull the leg insulator 36 out of the wader leg 33 and out of the wader 30 entirely while wearing the wader 30 . In order to reach into the wader 30 and grab the leg insulator 36 , it may be helpful for the user to unhook one or more of the suspenders 17 . However, it is not necessary for the user to remove his or her leg from the wader leg 33 in which the removed leg insulator 36 originally resided.

[0025] Furthermore, when the leg insulator 36 is detachably coupled to the wader leg 33 , it may be necessary for the user to detach the leg insulator 36 from the wader leg 33 . For velcro attachment mechanisms 39 , the foregoing may be accomplished by pulling the leg insulator 36 away from the wader leg 33 . For hook/hoop arrangements of the attachment mechanisms 39 , the user may manually unhook the attachment mechanisms 39 . Other techniques for other types of attachment mechanisms 39 may be employed in order to detach the leg insulator 36 from the wader leg 33 .

[0026] To enable the leg insulator 36 to be removed from the wader 30 without removing the user's legs from the wader legs 33 , the leg insulators 36 preferably do not form a complete cylinder (i.e., a cylinder not having any lengthwise ends, such as ends 42 and 44 , that extend from a top end to a bottom end of a leg insulator 36 ). In this regard, if the leg insulators 36 formed a complete cylinder, it can be appreciated by one of ordinary skill in the art that it would be difficult to remove the leg insulators 36 without removing the user's legs from the wader legs 33 . Moreover, by having two lengthwise ends 42 and 44 , it is possible to pull the leg insulator 36 out of the wader 30 with the user's leg passing between the two ends 42 and 44 thereby allowing the user to keep his or her leg in the wader leg 33 while the leg insulator 36 is being removed.

[0027] However, to increase the thermal insulation provided by the leg insulator 36 , it may be desirable to encircle the user's leg as much as is conveniently possible. FIGS. 2-4 depict an embodiment where the each of the leg insulators 36 substantially encircles one of the user's legs. In this regard, each leg insulator 36 extends from at least the front of one of the user's leg to the back of the same leg.

[0028] Note that various types of other conventional waders may be employed in implementing the present invention. As an example, refer to FIG. 5 , which depicts a wader 50 in accordance with another embodiment of the present invention. The wader 50 of FIG. 5 comprises two wader legs 52 that are separated from each other. A leg insulator 36 is positioned within each wader leg 52 . In this embodiment, each leg insulator 36 extends all of the way around one of the user's legs except for a small gap 54 between the ends 42 and 44 of the leg insulator 36 . Note that FIG. 6 depicts a top view of one of the wader legs 52 depicted in FIG. 5 . Covering such a large area of the user's legs with the leg insulators 36 may be beneficial for increasing the thermal insulation provided by the leg insulators 36 . Also, note that the same configuration and positioning of the leg insulators 36 , as shown in FIGS. 5 and 6 , may be employed with the wader 30 shown in FIG. 2 .

[0029] In addition, the preferred embodiment of the present invention has been described as inserting leg insulators 36 within wader legs 33 or 52 . However, in other embodiments, it is possible for the leg insulators 36 to be positioned on the outside of the wader legs 33 or 52 . However, such an arrangement may provide less thermal insulation and may require the use of more expensive materials. In this regard, the leg insulators 36 would be immersed within the water being waded through by the user and should, therefore, be comprised of water resistant material. In such an embodiment, the leg insulator 36 should be detachably coupled to the wader leg 33 or 52 via any suitable technique, such as the techniques described hereinabove for detachably securing the leg insulators 36 to the waders legs 33 or 52 or to the user's legs.

[0030] Note that a leg insulator 36 may have multiple gaps such that the leg insulator comprises different portions that may be separately removed from a wader leg 33 or 52 . For example, FIG. 7 depicts a top view of a leg insulator 72 that is similar to the leg insulator 36 depicted by FIGS. 5 and 6 . In this regard, the leg insulator 72 , similar to the leg insulator 36 of FIG. 6 , has a gap 54 that extends from a top end of the leg insulator 72 to a bottom end of the leg insulator 72 . Further, the leg insulator 72 also has a second gap 74 that, similar to gap 54 , extends from a top end of the leg insulator 72 to a bottom end of the leg insulator 72 . Thus, the leg insulator 72 has two portions 76 and 77 separated by gaps 54 and 74 . Moreover, portions 76 and 77 may be separately removed from the wader leg 52 . In this regard, portion 76 may be removed by grabbing the top of portion 76 and pulling the portion 76 out of the wader leg 52 , and portion 77 may be removed by grabbing the top of the portion and pulling the portion 77 out of the wader leg 52 .

[0031] It should be emphasized that the above-described embodiments of the present invention, particularly, any “preferred” embodiments, are merely possible examples of implementations, merely set forth for a clear understanding of the principles of the invention. Many variations and modifications may be made to the above-described embodiment(s) of the invention without departing substantially from the spirit and principles of the invention. All such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.