The term "matte" in our listings refers to the opacity of the balloons! The level of matte for the balloons comes from Oxidation after it has been blown up. When you first inflate, all of our balloons will appear first glossy, but matte in terms of not being transparent and a matte thick color. The more matte you want the balloons, you can either leave it out in the sun for 5 minutes(not too long to not risk popping from sun), or leave it out to open air for over 12-24 hours! But the balloons are all the same and will give that thick matte color. If you want it to appear super matte like the picture, sunning the balloons or leaving out for 12-24 hours will give you that velvet-y texture.