High-Quality Rashguard Tech Pack

I need a detailed tech pack for a high-quality short sleeve rashguard for my new clothing brand. The fabric should be a mix of polyester, and spandex.

Requirements:
- Detailed tech pack including materials, measurements, and construction details
- Experience in activewear or swimwear tech pack development
- Ability to suggest suitable fabric blends for quality and durability

Ideal Skills:
- Strong knowledge of garment construction and fabric properties
- Proficiency in tech pack creation
- Experience in the apparel industry, particularly in high-quality or performance wear