Wearable apparatus

1. An apparatus comprising:

a structure formed from a single piece of resiliently deformable material, the structure comprising a plurality of passages through the single piece of resiliently deformable material from an interior side of the structure towards an exterior side of the structure, wherein the passages have a diameter between 1 and 10 mm;

a hydrophilic wicking material, different from the resiliently deformable material, positioned on at least the interior side of the structure, forming an exterior contact surface of the apparatus wherein the hydrophilic wicking material extends from the interior side of the structure to the exterior side of the structure through at least some of the passages in the structure through the resiliently deformable material; and

wherein the apparatus is configured as part of a breathable user-wearable strap.

2. An apparatus as claimed in claim 1 , wherein at least one other of the plurality of passages through the resiliently deformable material between the interior side of the structure and the exterior side of the structure is empty of the hydrophilic wicking material.

3. An apparatus as claimed in claim 1 further comprising a hydrophobic material positioned to at least the exterior side of the structure, wherein the resiliently deformable material is between the hydrophobic material and the exterior contact surface of hydrophilic wicking material.

4. An apparatus as claimed in claim 3 , wherein the hydrophobic material extends over an exterior upper surface of the single piece of, resiliently deformable material and extends over the sides of the single piece of resiliently deformable material towards the contact surface but is configured such that it does not contact the user's skin in use.

5. An apparatus as claimed in claim 3 , wherein the hydrophobic material is additionally oleophobic.

6. An apparatus as claimed in claim 3 wherein the hydrophobic material is porous.

7. An apparatus as claimed in claim 1 wherein the structure is an internal structure comprising a plurality of passages between an interior side of the internal structure and an exterior side of the internal structure.

8. An apparatus as claimed in claim 1 , wherein the passages are dimensioned to enable transport of gas by diffusion.

9. An apparatus as claimed in claim wherein the structure is formed from a hydrophilic material comprising said passages.

10. An apparatus as claimed in claim 1 , further comprising at least one electronic component positioned to the exterior side of the structure and aligned with at least one of the passages through the internal structure.

11. A method comprising:

providing a structure formed from a single piece of resiliently deformable material, the structure comprising a plurality of passages through the single piece of resiliently deformable material between an interior side of the structure and an exterior side of the structure, wherein the passages have a diameter between 1 and 10 mm; and

providing a hydrophilic wicking material, different from the resiliently deformable material, on at least the interior side of the structure

wherein the hydrophilic wicking material, on the interior side of the structure, provides an exterior contact surface of the apparatus; and

providing hydrophilic wicking material extending from the interior side of the structure to the exterior side of the structure through at least some of the passages in the structure through the resiliently deformable material,

wherein the apparatus is configured as part of a breathable user-wearable strap.

12. A method as claimed in claim 11 further comprising: providing a hydrophobic material to at least the exterior side of the structure.

13. An apparatus comprising:

a structure formed from a single piece of resiliently deformable material, the structure comprising a plurality of passages through the single piece of resiliently deformable material from an interior side of the structure towards an exterior side of the structure, wherein the passages have a diameter between 1 and 10 mm;

a hydrophilic wicking material, different from the resiliently deformable material, positioned on at least the interior side of the structure, forming a first part of an exterior contact surface of the apparatus, wherein the hydrophilic wicking material extends from the interior side of the structure to the exterior side of the structure through at least some of the passages in the structure through the resiliently deformable material; and

protruding friction grip portions comprising material different from the hydrophilic wicking material, and forming a second part of the exterior contact surface of the apparatus, wherein the second part of the exterior contact surface is different from the first part of the exterior contact surface.

14. An apparatus as claimed in claim 1 , wherein at least some of the plurality of passages between the interior side of the structure and the exterior side of the structure extend from the contact surface of the apparatus through the resiliently deformable material to an exterior surface of the apparatus such that those passages are aligned with apertures in the contact surface and in the exterior surface of the apparatus.

15. An apparatus as claimed in claim 1 , wherein the hydrophilic wicking material on the interior side of the structure extends between at least some of the plurality of passages.