An aesthetically pleasing sandal sock with an upper planar surface and with a lower surface on which is located an oval structure with an opening and sides capable of engaging with the outer edges of the sandal sole, principally the outer edge of a toe region of the sandal and the outer edge of heel region of the sandal, such that the upper planar surface of the sock extends the length and width of the sandal sole. The sandal sock is composed of elastic and flexible material. The side of the oval opening has an outer edge and an inner edge. The inner edge connects and binds with the lower surface. The outer edge is capable of contacting the outer edge of the sandal to position and hold the upper planar surface of the sock so that it is in contact with both upper surface of the sandal sole and foot, when the sandal is worn. The sandal enjoys a naked foot look when worn.

The invention concerns an insole comprising a substrate and a printed layer, wherein the substrate comprises a first friction coefficient on a reference surface and the printed layer comprises a second friction coefficient on the reference surface, which is higher than the first friction coefficient.

The invention concerns an insole comprising a substrate and a printed layer, wherein the substrate comprises a first friction coefficient on a reference surface and the printed layer comprises a second friction coefficient on the reference surface, which is higher than the first friction coefficient.

A holistically improved shoe that incorporates beneficial aspects relating to a variety of interconnected elements, including comfort, sustainability, washability, ease of manufacturing, style, freedom and natural movement of the foot, as well as the sensory experience of a user. The shoe contains a removable insert that is configured to be removed and washed in between uses or as needed, such that a sock or other liner is unnecessary. The shoe further includes a footbed and an outsole that contain matching tread patterns. The matching tread patterns of the present technology allow the footbed and the outsole to move in concert by splaying during a stride in order to better absorb shock by mimicking the natural movements of the foot.

A holistically improved shoe that incorporates beneficial aspects relating to a variety of interconnected elements, including comfort, sustainability, washability, ease of manufacturing, style, freedom and natural movement of the foot, as well as the sensory experience of a user. The shoe contains a removable insert that is configured to be removed and washed in between uses or as needed, such that a sock or other liner is unnecessary. The shoe further includes a footbed and an outsole that contain matching tread patterns. The matching tread patterns of the present technology allow the footbed and the outsole to move in concert by splaying during a stride in order to better absorb shock by mimicking the natural movements of the foot.

An insole, which is insertable into a shoe and is removable from the shoe, includes at least a top layer, a middle layer, and a bottom layer. The middle layer has apertures or cavities, that define several discrete storage chambers within the insole. Each storage chamber stores a mixture of two or more particulate materials. The mixture includes one or more materials selected from Group A, which includes natural sand, synthetic sand, artificial sand, kinetic sand, silica, quartz. The mixture further includes one or more materials selected from Group B, which includes: powdered aluminum, powdered titanium, powdered zinc, powdered magnesia, powdered silver, powdered anti-bacterial agent, powdered metal, powdered talcum, grained cork, grained coal, grained wood.

Methods for fracturing a subterranean formation penetrated by a well bore are provided, the method comprising the step of injecting a well treatment fluid into the well bore at a pressure and flow rate sufficient to fracture the subterranean formation, wherein the well treatment fluid comprises one or more iron-containing compounds and one or more booster compounds. The methods can be used to reduce viscosity and to facilitate the decomposition of acrylamide-containing polymers.

A pair of shoes and shoe insert covers thereof are provided. The shoe insert cover and a shoe insert are disposed in the pair of shoes. The shoe insert cover has a shoe insert cover top and at least one shoe insert cover bottom, and the shoe insert cover top is connected to the at least one shoe insert cover bottom. The shoe insert is located between the shoe insert cover top and the shoe insert cover bottom, and the shoe insert cover bottom is located between the shoe insert and a sole portion of the shoe. A user with sweating feet can easily replace a surface material of the shoe.

A pair of shoes and shoe insert covers thereof are provided. The shoe insert cover and a shoe insert are disposed in the pair of shoes. The shoe insert cover has a shoe insert cover top and at least one shoe insert cover bottom, and the shoe insert cover top is connected to the at least one shoe insert cover bottom. The shoe insert is located between the shoe insert cover top and the shoe insert cover bottom, and the shoe insert cover bottom is located between the shoe insert and a sole portion of the shoe. A user with sweating feet can easily replace a surface material of the shoe.

A chassis for an article of footwear may include a base and a frame attached to a top side of the base. The frame may include a network of interconnected walls defining a plurality of cells, each of at least a portion of the cells having a bottom at least partially closed by an underlying portion of the base. A bottom of the base may be fixed with respect to a plantar section of an upper. A sock liner may be indexed to the chassis or to another footwear support structure. The sock liner may have downwardly-extending tabs configured to rest in cells of the chassis or in other cavities of a support structure.