I'm looking for detailed CAD drawings of insole/undersole of sneakers, specifically focusing on cushioning details and an internal system/cross-section drawing. Key Requirements: - CAD drawings of athletic sneakers (sole/internal sole system focus) - Detailed cushioning information - Cross-section/ internal system diagrams - Drawings for patent submission Ideal Skills & Experience: - Proficiency in CAD software - Experience in footwear design, especially athletic sneakers - Some understanding of cushioning technologies and internal shoe mechanics Please include samples of previous similar work in your bids.