Nike unveiled the Caitlin Clark Kobe 5 "Protro PE" sneaker in a new commercial on Sunday. The shoe was released on Monday and sold out less than a minute after it went online. One fan who tried to claim a pair for themselves was left disappointed after Nike’s website read:“Missed ‘Em. Thank you for joining the draw for the Kobe V Protro. Unfortunately, it didn’t work out this time.”This fan wasn’t alone, as many were left disappointed by the speed at which Clark’s shoe sold out and are now reacting to the instant sellout on social media."Faster than a blink of an eye," one fan said.CC's cookie 🍪 @nonchalotteLINKFaster than a blink of an eyeAnother fan said: Drew to the Game @SunTzuLiveLINKMe and my baby girl entered the draw within seconds and neither of us got them 🤦🏼‍♂️Another fan said:Aten Brown @aditya_A17LINKDamn that was faster than speed of soundSome fans pointed out that resellers were able to grab pairs of Clark's shoes in bulk and are now selling them for as much as $4,000.One fan said:Michael @Michael72017843LINKI seen them in 3rd markets for around $ 4,000 they were sold out tooAnother fan commented:Is the Caitlin Clark effect behind the WNBA’s recent expansion?Before the Golden State Valkyries, the Atlanta Dream was the WNBA’s newest expansion team, joining the league in 2008. Since Caitlin Clark made her debut in 2024, the league has added one new team, with five more expansion teams set to join the league by 2030. Clark’s arrival saw the WNBA make an exponential jump in terms of viewership and the overall attention the league gets. This has also translated to more revenue and sponsorship growth as more and more brands are now investing in women’s basketball. While the Fever star has benefited the most from her impact, it has undoubtedly made life better for everyone in the WNBA. The league’s newfound attention has given them the confidence and financial security needed to move forward with their expansion.After 16 years of no growth in team count, the league is now actively expanding, which is clear evidence of the Caitlin Clark effect.