Design some Fashion

I am looking for a graphic designer with experience in Fashion design and pattern making to create sketches/drawings of my design concepts as well as creating the pattern designs for them to be ready for production/manufacturing sample making. The designs are for the gym workout wear and is rather simple in nature because we are not reinventing the wheel, just mashing up some existing design components. I have a clear vision but am open to your insights and design expertise. Preferable if you've designed jeans/sweatpants or gymwear before or have a passion in that industry. Bid to design one style of pants in one size for now. And if all goes well we can take it from there.