This is the base of your shell! Depending on the size of costume you are making, you may need two rolls!
Do²ping White Foam Sheets Roll, 10mm Thick Premium Cosplay EVA Foam Sheet, 13.9"x39" High Density 86kg/m3 Craft Foam for Costume, Crafts, DIY Projects (10mm White)
This is for the jet pack, and the added details! I used both the 3mm and 5mm!
Cosplay High-Density EVA Foam
For around the abdomen
The Foamory 3-Pack Black EVA Foam Dowel - Half Round 25mm x 1M Length Stick | Pre-cut, Paint-ready No-waste Design for Cosplay Armor Trim, Weapon Builds & Costume Detailing. Time Saving Crafting Material
Apple Barrel, Matte Acrylic Paint, 8 fl oz, Purple Iris, (Pack of 1)
For cutting through the foam
DIYSELF 16-Piece Exacto Knife Set, Craft Knife & Hobby Knife Kit, Precision Knife with Magnetic Storage Case, Exacto Knife for Crafting, Paper, Foam, Vinyl, Models, 3D Printing, Junk Journal Supplies
Large cutting mat for your work station
Density-upgraded 24" x 36" Large Self Healing Sewing Mat, Idemeet Rotary Cutting Mat 5-Ply Cut Board for Crafts Hobby Project, Scale Size 24" x 36", A1, Green
You will absolutely need a rotary tool to sand through the foam, I tried to use a electric file and a sander and it didn't work so I bought this