A multi-sided, multi-purpose liner is provided for use in footwear. Each side of the liner provides one or more benefits to the wearer. The liner is reversible, such that a first side with a first benefit can contact the wearer's foot or a second side with a second benefit can contact the wearer's foot. The wearer can flip or rotate the liner so that the side having the desired benefit contacts their foot during use. One side of the liner may include a plurality of benefits in a preselected pattern across the surface. A liner kit provides a material blank from which the liner may be cut to produce a desired distribution of benefits. The benefits of the liner may vary with respect to the location on the surface of the liner, with some areas of the liner displaying an increased or decreased degree of a specific benefit.

An antistatic sport device includes a basic body and a basic element placed at the basic body, made of a running surface layer and side edges. At least one of the side edges forms a contacting surface that can be turned towards the terrain. Between a rear surface of the running surface layer and the basic body, a contacting element made of an electrically conductive material is placed at least in sections. The running surface layer is electrically conductively connected to the contacting element via a discharge path and further the contacting element to the contacting surface formed by the at least one side edge. Further, a sport system has antistatic function and a sport clothing system is for such sport system.

The present invention is to provide an electrotherapeutic sole and a method for making the same, wherein the electrotherapeutic sole is composed of nitrile-butadiene rubber (38%42% by weight), conductive carbon black (37%42% by weight), a softening oil (14%17% by weight), a processing aid (3%5% by weight), and an accelerant (1%2% by weight) and has a top portion protrudingly provided with a plurality of electrode protuberances that correspond in positions to the acupoints in a human sole; the electrotherapeutic sole is also provided with a socket, thereby an electrotherapeutic pulse output terminal inserted into the socket can send the electrotherapeutic pulses generated by an electrotherapeutic pulse generator sequentially through the socket and the conductive carbon black in the electrotherapeutic sole to the tips of the electrode protuberances to massage the corresponding acupoints in the human sole.

Components for articles of footwear and athletic equipment are provided including a foam. A variety of foams and foam components are provided. The articles include a composition having a foam structure, wherein the composition includes an ionomeric polymer and a plurality of cations, wherein the ionomeric copolymer is crosslinked by the cations. The crosslinks are ionic, so in some aspects the composition is free or essentially free of any covalent crosslinks between the ionomers. In particular, midsoles including the foams are provided for use in an article of footwear. Methods of making the compositions and foams are provided, as well as methods of making an article of footwear including one of the foam components. In some aspects, the foams and foam components can be made by injection molding or injection molding followed by compression molding.

Provided is a shock absorber formed by a resin composition and provided in a shoe, the shock absorber satisfying all formulas (1) to (4) below when changes in storage elastic modulus between 20 C. to 50 C. are linearly approximated by a least-squares method: Y=aX+b . . . (1); 0.1a0.02 . . . (2); 1.0b16.0 . . . (3); and R.sup.20.75 . . . (4), where X represents a temperature (unit: C.) of the shock absorber, Y represents a storage elastic modulus of the shock absorber, and R represents a correlation coefficient in the least-squares method.

Wearable items having wear-susceptible areas or indicia for influencing an emotional or psychological state, after a progressive amount of wear occurs on the area or indicia, are disclosed. The wearable item comprises a substrate that includes wear-susceptible areas, wear-susceptible indicia, and/or a combination of wear-susceptible areas and indicia. One or more wear-susceptible areas incorporate markings and/or indicia such as words, pictures, symbols, which progressively wear away. These phrases, symbols, and pictures can relate to emotional and/or psychological obstacles and impediments, which are adversarial in nature.

The present invention is to provide an electrotherapeutic sole and a method for making the same, wherein the electrotherapeutic sole is composed of nitrile-butadiene rubber (38%?42% by weight), conductive carbon black (37%?42% by weight), a softening oil (14%?17% by weight), a processing aid (3%?5% by weight), and an accelerant (1%?2% by weight) and has a top portion protrudingly provided with a plurality of electrode protuberances that correspond in positions to the acupoints in a human sole; the electrotherapeutic sole is also provided with a socket, thereby an electrotherapeutic pulse output terminal inserted into the socket can send the electrotherapeutic pulses generated by an electrotherapeutic pulse generator sequentially through the socket and the conductive carbon black in the electrotherapeutic sole to the tips of the electrode protuberances to massage the corresponding acupoints in the human sole.

An article of footwear is configured to be worn so as to at least partially cover a wearer's foot. The footwear includes at least one optical fiber on an internal surface of the footwear. The at least one optical fiber is configured to project radiation having a therapeutic wavelength through the at least one optical fiber and toward at least one of the wearer's foot, ankle or leg when the footwear is being worn so as to at least partially cover the wearer's foot.

A recyclable crosslinked polymeric foam includes a reaction product of 0.1 to 10 parts by weight of a crosslinking agent and 0.1 to 5 parts by weight of a radical initiator, based on 100 parts by weight of a polymeric material. The crosslinking agent is represented by the following formula: ##STR00001##
wherein R is an alkylene group having 2 to 10 carbon atoms, an arylene group having 6 to 18 carbon atoms, or a cycloalkylene group having 6 to 18 carbon atoms.

An insole includes a heel cup portion supporting a heel, in which the heel cup portion has an outer height higher than an inner height.