Patent ID: 11925236
Assignee: INSAND LTD.
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 0:
1. An article comprising:
a footwear having an integral and non-removable insole,
the insole comprising at least
a bottom layer formed of a material selected from the group consisting of: Ethylene-Vinyl Acetate (EVA) polymer, sponge, foamed polyurethane;
a middle layer formed of a material selected from the group consisting of Ethylene-Vinyl Acetate (EVA) polymer, sponge, foamed polyurethane;
and a top layer formed of a co-polymer;

wherein the middle layer comprises apertures therein;
wherein said apertures in the middle layer, with corresponding portions of the top layer that are above said apertures, and with corresponding portions of the bottom layer that are beneath said apertures, define two or more internal discrete storage chambers within said insole;
wherein each of said internal discrete storage chambers stores therein a mixture of two or more particulate materials which comprise at least:
(i) one or more materials selected from Group A, wherein Group A consists of: natural sand, synthetic sand, artificial sand, silica, quartz; and
(ii) one or more materials selected from Group B, wherein Group B consists of: powdered aluminum, powdered titanium, powdered zinc, powdered magnesia, powdered silver, powdered anti-bacterial agent, powdered metal, powdered talcum, silicone oil.