I am developing a new duffel-style gym bag and need a fresh, modern, and sleek design that feels at home both in the locker room and on the street. The visual language should be clean and contemporary—think subtle branding, streamlined lines, and smart use of panels or trims that add character without clutter. The core parameters are straightforward: • Style: Modern and sleek (no overt retro touches or bulky detailing). • Form factor: Duffel bag. • Colour palette: I haven’t locked this in yet, so feel free to propose tones that reinforce the modern-sleek direction; we can finalise shades once we see the concepts. To keep the project organised, I’d like the final hand-off to include: • Initial concept sketches or 3D renders for review. • One fully-refined design with accurate dimensions, material call-outs, and hardware/zipper specs. • A short tech pack or annotated drawing set that a manufacturer can quote from with minimal back-and-forth. If you typically work in Illustrator, Photoshop, Rhino, Fusion 360, or similar tools, please mention it so I know which format to expect. I’ll provide quick feedback at each stage so we stay aligned and can move efficiently toward a production-ready design.