Any one currently selling BTC clothing would be interested in this. Contact them. We challenged a patent last year by submitting evidence of prior art. Cost

Any one currently selling BTC clothing would be interested in this. Contact them. We challenged a patent last year by submitting evidence of prior art. Cost a few hundred $ and not too much time. I'm sure current BTC clothing owners would be incentivised to challenge this in a similar way if it's not too far through the process.