An Amazon Flex worker pointed to the biggest challenges of making deliveries as an independent contractor during the massive Prime Day sales event.

Amazon Prime Day is one of the busiest times of year for Flex drivers as they deliver packages. Some are planning early shifts.

*Amazon launched its “Flex” delivery back in 2015 — offering drivers $18 to $25 dollars an hour to deliver packages — and the service has been growing steadily since. “I decided, what the hell, let’s ...