Wow. I had a long, detailed conversation last night with my roommate/potential co-founder about doing EXACTLY this. The way sizing is handled in the clothing industry is ridiculous for women especially, but for men as well according to this article.
The basic technology product is software that, given information about your body shape, can produce a listing of clothing that will fit you. As far as we can tell this does not yet exist. When the customer can trust that the clothes will fit, then they can shop based on style, fashion, price, or any other number of more interesting criteria rather than worrying about getting the right size or cut.
If you pair this technology with a customer-centered online retail environment then I think you can create a lot of value. Zappos has shown that you can make buying articles of clothing online work, with their famous customer support and return policies.
The concept of requiring a customer to consult a sizing translation table per label or even per garment just to find clothes that fit well flabbergasts me. But we haven't found any better solutions on offer.
This all fits in with Request For Startup 2: New Paths Through Product Space. http://ycombinator.com/rfs2.html Nobody is selling clothing based on what fits the individual shopper. We want to make an online storefront that only offers clothing that will fit you.
There are a lot of negative knock-on effects from the current way clothes shopping is done. People agonize over sizing and equate their waistband with their self-worth. That's ridiculous. Every person will look best and be most comfortable in clothing that matches their actual shape, regardless of what number is on the label. Especially if that number is a lie!
Clothes shopping changed drastically starting in about the mid 1800s through the 1920s with the advent of mass-produced garments. Before that each item was made individually. After that, confusing labels, garments designed to fit the "average" person to minimize the need for alterations, changing demographics, and vanity sizing turned the whole system into an incredible morass. It wasn't always this way, and it shouldn't have to be.
The article suggests that government regulation of sizing labels is the solution to the problem of ill-fitting clothing. What the author does not mention is that this was tried in the past! That system fell apart and you can read about its failure from the NIST: http://museum.nist.gov/exhibits/apparel/index.htm
I posit that smarter technology which can match the clothing to the person is a superior solution.
There's a lot of pain involved in clothes shopping today. We want to fix that.
If any hackers here, especially women, have some thoughts to share on this topic I dearly want to hear them, whether in a post here or in a private email. My address is in my profile.
We are seriously considering applying to YCombinator with this proposal.