Reusable Aluminium Bottle Design

I’m looking for a straightforward concept design for a reusable aluminium water bottle meant for everyday use. At this stage I only need a basic blueprint—clean sketches or a simple 3D draft are enough for me to visualise the form and core mechanics.

Essential requirements:
• Leak-proof design that holds up to daily commuting and office use
• Easy-to-grip body—subtle texturing, contouring, or a silicone band are all acceptable approaches
• Double-walled vacuum insulation so water stays cold throughout the day

If you already work in tools like SolidWorks, Fusion 360, or similar CAD software, feel free to use them; a clear PDF or image export will be fine for delivery. I don’t need full production drawings yet—just a solid concept with dimensions, materials call-outs, and a quick note on how the seal mechanism will prevent leaks.

Please include a brief explanation of your concept along with the visuals, and highlight any similar bottle designs you’ve created before. I’m ready to get started as soon as I find a practical, user-friendly idea that matches the points above.