iPhone Power Bank Case

I need a soft shell iPhone case integrated with a power bank. The design should be slim and lightweight, ensuring easy portability without sacrificing protection.

Key Requirements:
- Soft shell material
- Power bank integration
- Slim, lightweight design

Ideal Skills/Experience:
- Experience in product design and prototyping
- Knowledge of power bank technology
- Familiarity with soft shell materials and manufacturing

I need this project completed ASAP. Please provide samples of previous similar work.