For Biking do Sneakers offer any advantage over Sandals? I live in a tropical country. We have only two seasons. A rainy season that lasts for 4 months and a summer lasting the remaining 8 months. 

The maximum and minimum temperatures are 36 and 20 degrees Celsius respectively.

I ride my hybrid cycle almost every day for exercise. 

The sneakers get wet during the rainy season and the feet get too warm during summer. 

Therefore, I find it comfortable and convenient to wear waterproof sports sandals with back straps when riding my bike. 

My question is do sneakers (sports shoes) offer any special advantages when biking over sandals? 

Thank you for your advice.
1 advantage is in an accident it's harder to rip a toenail off.