Bamboo Hat Sweatband Design

I’m developing a cap that replaces the standard inner sweatband. I’ve settled on a bamboo fabric as there is a very thin velcro that will adhere to bamboo, thereby nessicating only one side with velcro . Here is what I need from you: • A complete design for the bamboo sweatband—dimensions, cross-section profile, recommended stitch or bonding methods, and any edging or reinforcement ideas that keep the band snug yet gentle on the forehead. • Production-ready files: pattern pieces in PDF or DXF, a short tech pack outlining material specs, and concise care instructions I can hand for a quick refinement pass if needed. We are wanting one flat single piece of preshrunk Bamboo. Obviously this will be thin, and attached by sewing. Once satisfied with this one sweatband, we will need another twin size band, there again made of preshrunk bamboo with a very thin piece of Velcro sewn to this second band. This is to create a removable sweat band for washing and replacement with a dry duplicate. Hopefully with this procedure one can maintain somewhat of a dry sweatband during use.