What size trunk organizer should I buy?

Capacity in these listings ranges from compact 45-52L bins up to 95-114L cargo boxes. Sedan owners tend to do well with 45-70L models, while SUV and truck owners reaching for the AOPHY 95L or similar large-capacity options report better fit for groceries plus gear. Always check the listed length and width against your trunk before buying, since collapsible bins can be wider than they look.