This high quality, Ultra High Density EVA foam was specifically designed for Cosplay and costuming needs. We developed our unique SHAPE RETENTION FOAM formula specifically to outperform the competition in Durability and Shape Retention. This means that after you pour all of that painstaking effort into your Cosplay, Costuming or Crafting design, you can count on our EVA Foam to hold up to whatever Con or daily activities you throw at your creation! We developed our blend of Shape Retention Foam to make it EASIER for you to work with and SAVE you time. Many EVA foams out there claim to be "high density" when in fact most of them are low to average densities at around 30 kg/m3 (2 lb/ft3). Our ultra high density EVA foam comes in at over 85 kg/m3 (5.3 lb/ft3), which results in a much better Cosplay designing experience: Hard to find large cut at 35in x 59in = perfect for those larger projects, requiring less piecing together and fewer seems. It is also ideal for smaller projects because you will get more pieces out of one sheet Closed-Cell, Ultra High Density at 85 kg/m3 (5.3 lb/ft3) = 1. Heat shaping is easier and 2. Sanding the foam is smoother 3. Cutting is more precise 4. Longer shape retention Smooth on both sides = makes layering of the foam a piece of cake, no texture to have to work around. 1mm & 2mm Thickness = Fantastic for small to medium armor & accessory pieces, layering work and you can even SEW IT! 4mm & 6mm Thickness = great for armor, medium sized accessories and detail work. 8mm & 10mm Thickness = great for thicker armor, large sized accessories and designs. Not spongy like other cheap material. This is the real deal!