A medical balloon for a balloon catheter is described. The balloon has at least a first layer made from a first material and a second layer made from a second material, said first and second layers being in overlying relationship with one another and being integral with one another wherein the first layer has a softening or melting temperature which is higher than a softening or melting temperature of the second layer. A method of forming the medical balloon is also described, including locating a raw tubing in a mold preheating and inflating the raw tubing so as to cause it to stretch heating the raw tubing to soften or melt the second layer setting the inflated raw tubing to form the medical balloon and cooling the set balloon.
