Roto-molded coolers vs traditional coolers: Roto-molded wins for saltwater durability

Saltwater eats metal parts fast, so roto-molded coolers like Yeti, Pelican, or Engel are the only real choice—they’re one-piece plastic with no exposed metal to corrode. Traditional coolers with metal hinges and latches fail within a season, even “marine grade.” On a budget, look for fully plastic hardware (some Igloo models work), but skip cheap metal-handled coolers.