Maybe the ones I got are defective or just not very compatible with 11 pro max. The sandals looked very cute with her church dress. Upon assembling the frame split and is now useless. They are a good product, but I would recommend ordering a full size larger and shopping around for a better price. LOVE LOVE LOVE IT. ?? Le userò anche in città. I typically wear a size 10 and bought a size 10. Integrated cable locks. The item I received was labelled as made in China and very uncomfortable compared to other flip flops Ive worn that cost $20 less. They stay put and the sound quality is excellent.