What are some alternatives?
When comparing Stylr and Virtusize, you can also consider the following products
Bodilove - Super Fast Fashion at Affordable Prices
True Fit - Virtual Fitting
Fashion Shopping - This application allows You to browse many online fashion stores in one easy to browse place.
Metail - Metal with Swift Metal (not Metail) is a low-level API from Apple that combines OpenGL and OpenCL into a single interface.
ASOS - Online Shopping for the Latest Clothes & Fashion
Fit Analytics - Fit Analytics provides the size recommendation engine for ecommerce vertical.