Good build quality, excellent battery life, upgraded to Android 9. These sandals fit perfectly and are adjustable with Velcro. The construction was high quality as were the materials. So if you are often cold at night, you should probably move on to another product. Also, they interlock from top and bottom but not next to each other. Because of our uniform requirements, this is one way I can express myself! I just dont know if its comfortable too! (ed avevano una tendenza ai bassi che non ho amato troppo), quasi il triplo delle altre, e ho stabilito che il miglioramento ricevuto per me non valeva la cifra investita. I shouldve returned them but i didnt realize how uncomfortable that got until i wore them out and about on my day. Ive been enjoying Chaco shoes for a year now.