shoe insole 3d model

A universal ergonomic shoe insole designed for 3D printing, optimized for comfort and flexibility. The insole should have a slightly curved anatomical shape to support the arch, with a soft cushioned surface texture. Include a honeycomb or lattice internal structure to provide flexibility and shock absorption while reducing material usage. The heel area should be slightly thicker for impact support, and the toe area thinner for flexibility. Edges should be smooth and rounded for comfort inside shoes. Design should be symmetrical and scalable to fit different shoe sizes. Flat bottom surface for stable placement inside shoes. No branding, no text. Clean industrial design. Optimized for TPU or flexible filament printing.