Casual Men's Clothing Brand Development

I'm looking to create a casual wear clothing brand specifically for men aged 20-35.

Key requirements:
- Brand concept development
- Trend analysis for target demographic
- Design of casual wear collection
- Marketing strategy formulation

Ideal skills and experience:
- Proven experience in men's fashion
- Strong understanding of young adult trends
- Brand development expertise
- Creative design skills

Please provide a portfolio and relevant experience.