Fishing cooler bags are essential for keeping bait fresh and in tip top condition when out on the bank. Cool bags are insulated and will keep fresh or frozen bait inside cool for longer in hot environments, this helps keep bait in good condition. Ice blocks or cool packs can also be added to the cool bags with frozen bait to stop it defrosting as quickly.
Cool bags often feature handles or straps for ease of transportation and some have external pockets to keep essential items, like bait elastic, close at hand. Some larger cooler bags have two separate cool compartments, this allows frozen bait to be stored in one section and fresh or live bait in the other.