Design Multi-Occasion Men's Trousers

I'm seeking a designer to create a pair of men's trousers that are:

- Simple and minimalistic
- Suitable for any occasion
- Offering the comfort of track pants but with a professional look for office wear

Key Specifications:
- Material: Open to any, but should be comfortable, durable, and suitable for all-weather conditions.
- Fit: Regular fit
- Color: Neutral colors (black, gray, navy)

Ideal candidates should have experience in menswear design, particularly with creating versatile and comfortable trousers. Familiarity with fabrics and understanding of fit, comfort and style is crucial. A portfolio showcasing similar past projects would be highly advantageous.