Laws of Motion

The One guides customers to order their best-fitting size per product, powering 20X conversion and 80% fewer returns

Laws of Motion builds AI sizing technology, branded on its site as The One, that helps apparel shoppers order the right size for each product instead of guessing. Using a 1:1 body-to-SKU method, it calculates body measurements and factors in product-specific fit to recommend a best-fitting size, with the company citing accuracy in the high nineties on its own site.

Shoppers can interact through a fit quiz, a body scan, or manual measurements, whichever suits them, and Laws of Motion also places size reminders directly in the cart to catch mismatches before checkout. The company frames this as a way for e-commerce apparel brands to cut the return volume caused by wrong-size orders, pointing to a large lift in conversion and a sharp drop in both returns and size sampling.

Access is by request rather than self-serve: brands interested in Laws of Motion are invited to reach out directly for an invite, and no public pricing is listed on the site.

Category: E-commerce. Pricing: freemium. Visit website

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