Free patterns · Paid feedback · Every size

Become a pattern tester

Sloper Studio generates sewing patterns drafted to your exact measurements. Before launch, every garment is tested on real bodies. Testers get free custom-fitted patterns, compensation for completed feedback, and a direct hand in shaping the fit. Read how we draft patterns.

Tester application

We recruit across all sizes: every measurement range matters for validating fit.

We only use this information to run the tester program. See our Privacy Policy.