If you are taking steps to become healthier and eat natural foods, you shouldn’t store them in containers that have BPA, lead, and other toxins. There are some reports that show lead is in some soft-sided lunch boxes.
Two alternate methods to store/carry your food throughout your day are lead-free glass containers and (high/medical grade polished)stainless steel containers. There are smaller ones for children and light eaters, as well as larger ones for adults and people who need more food. Here are just a few:
Run, crawl, squat, climb, jump, swing, lift, carry, chase, swim….