Wearable cooling/heating system

An apparatus comprising:

• a first fabric layer and a second fabric layer, wherein the first fabric layer has an elongated rectangular section aligned with an elongated rectangular section of the second fabric layer, wherein the elongated rectangular section of the first fabric layer is stitched to the elongated rectangular section of second fabric layer at one or more periphery seams at or near the respective peripheries of each fabric layer, wherein the first fabric layer and second fabric layer has corresponding first and second end portions, and corresponding middle portions;
• a water-permeable compartment located between the elongated rectangular section of the first fabric layer and the elongated rectangular section of the second fabric layer at the middle portion of the first fabric layer and the corresponding middle portion of the second fabric layer, wherein the water-permeable compartment has an elongated rectangular topside section and an elongated rectangular underside section, each having a length that is less than the length of the elongated rectangular sections of the first and second fabric layers;
• wherein the elongated rectangular topside section and the elongated rectangular underside section of the water-permeable compartment are stitched together at one or more periphery seams at or near the respective peripheries of the elongated rectangular topside section and the elongated rectangular underside section of the water-permeable compartment;
• wherein the one or more periphery seams of the water-permeable compartment coincide with or are the same as the one or more periphery seams of the first fabric layer and the second fabric layer;
• wherein the second fabric layer and water-permeable compartment collectively define an opening at the middle portion of the second fabric layer;
• wherein the opening is configured to receive a cooling medium or a heating medium and the water-permeable compartment is configured to receive a cooling medium or heating medium via the opening;
• wherein when at least a part of the middle portion of the second fabric layer is placed on a portion of the neck of a user, the opening is not accessible, and wherein when a cooling medium or heating medium is placed in the water-permeable compartment the medium will cool or warm the part placed on the portion of the neck of the user and at least a part of the middle portion of the first fabric layer will extend out and away from the at least a part of the middle portion of the second fabric layer placed on the portion of the neck of the user;
• wherein the water-permeable compartment is substantially centered between the first and second end portions of the first fabric layer and the second fabric layer.