Product Design

CM4-Silk Phone Cases

About this project

We Use This Every Day

We don’t work on man products with short life-cycles. You know, because of the environment and stuff. But we’re big fans of this one.

CM4, now Smartish, is an Austin based company that develops and produces a variety of high end smartphone cases and other goods. Their staple product is the Q-Card case, which allows those with minimal storage needs to eliminate a wallet all together. We use these to protect our personal devices and help keep our back pockets empty!

We assisted in the design and completed fully engineered CAD models for several cases in the CM4 line.  Talk about tight tolerances.  This product was our first to surpass the 100K unit milestone!

Contact Us


We love working with awesome people on awesome projects.  If you have a need at any stage of the design process, from conception to production, please reach out.

We also love tacos, coffee, and talking shop.  If you want to bounce ideas off us, please also feel free to send a hello!

Austin, TX

512 . 730 . 0897

cjeddy@trekrdesigns.com