He has moved up from super-feather, where he struggled to make the weight, and his last fight was a quite brilliant stoppage of Antonio DeMarco, who was the defending WBC champion.
The Welsh super-feather started the Prizefighter tournament at York Hall on Saturday night with just six stoppages in 18 fights over five largely anonymous years in the business.
Khan boxed at distance, closing in only to torment the 35-year-old, who was once the best from bantam to super-feather over 12 years but now was a lightweight in every sense of the word.
Top right, microstructure of super black feather from Paradise Riflebird still appears black even after being coated with gold, bottom right.
Super black feathers have an extreme directional reflectance bias and appear darkest when viewed from the distal direction.
SEM, nano-CT, and ray-tracing simulations show that super black feathers have titled arrays of highly modified barbules, which cause more multiple scattering, resulting in more structural absorption, than normal black feathers.
Owls have these super fluffy feathers on their, uh, undercarriage that help them stay deadly silent.
In Birds of Paradise, super-black feathers help male birds look more beautiful to a female's eye.
Perhaps these super-black feathers with their unique microscopic structure could eventually inspire better solar panels, or new textiles; super-black butterfly wings already have.
Like the super-black feathers, their microscopic "light traps" are due to a rough surface that scatters light repeatedly, but the actual surface shapes they use are different.
