Smatree Hard EVA Protective Sleeve Case Compatible for 15.3 inch Apple MacBook Air 15 M5 2026/M4 2025/M3 Chip 2024/ M2 Chip 2023,MacBook Air A3114/A2941 Laptop and Anti-Shock Bag, Case(X8266)

I would look into a hard sleeve like this: https://www.amazon.com/dp/B0CLP3ZJDR/ It obviously not stylish, but the idea is that you can stuff it into your regular bag and it’ll protect the MacBook from getting damaged by whatever else you have in there. There are tons of soft sleeves out there, but those aren’t as safe because they could allow your MacBook to get bent by lumpy stuff in your bag like water bottles.