Masked Fabrication Inflatable Devices

A method of manufacturing a multi-layer bladder, the method comprising:

• disposing a mask on a first bladder layer;
• disposing a second bladder layer over the mask and the first bladder layer,
• wherein the mask includes a plurality of apertures and is configured to prevent bonding of the second bladder layer to the first bladder layer where the mask is present;
• and
• using a heat press, applying pressure and heating the first bladder layer, second bladder layer, and the mask within in a predetermined temperature range for at least a predetermined period, thereby bonding the first bladder layer with the second bladder layer within the apertures and at locations where the mask is not present between the first and second bladder layers.