Food packed for a cooler needs more than a snug fit: it should stay contained if ice melts, the cooler tips, or other gear presses against it. The best choice depends on what you’re packing. A locking container works well for meals and sauces, while a waterproof, crush-resistant tube is better suited to sandwiches and wet outings. Here are three options, including one that’s best treated as dry-food storage rather than a waterproof cooler container.
| Container | Best for | Notable feature |
|---|---|---|
| YETI Food Storage Container | Meals, sauces, and leftovers | Locking airtight lid; 8.5-cup capacity |
| GreenJoy Pet Food Storage Containers | Keeping dry kibble or treats organized | Two compact containers with measuring cups |
| SubSafe 3-Piece Sandwich Container | Subs and sandwiches on wet or crowded outings | Waterproof, floating, twist-lock design |
Table of Contents
Our Picks: Best Waterproof Food Containers For Coolers reviews
YETI Food Storage Container: Best for Meals and Sauces
This 8.5-cup container is designed for foods that need a secure seal, including soups, stews, sauces, and leftovers. Its locking lid is described as airtight and leak-proof when closed, making it the most versatile choice here for packing a full meal in a cooler.
The container measures 10 by 7.3 by 3.2 inches, so check your cooler or lunch bag before ordering. It is made from Tritan Renew plastic with up to 50% certified recycled content, and the entire container, including the lid, is third-party certified BPA-free. It is also freezer-safe, microwave-safe with the lid removed, and dishwasher-safe.
Its shape and capacity suit meal prep, road trips, and camping trips where you want one container for a substantial portion. It is listed as fitting several YETI bags and coolers, as well as standard coolers. Keep in mind that a leak-proof lid is not the same as a container designed to be submerged underwater; for that kind of use, the SubSafe is the clearer fit.
Pros:
- Large 8.5-cup capacity for meals and leftovers
- Locking airtight lid is designed to contain liquids
- Freezer-, microwave-, and dishwasher-safe
- Made with Tritan Renew and certified BPA-free across the container
Cons:
- Its dimensions may be too large for smaller cooler compartments
- Not described as suitable for underwater submersion
Verdict: Choose the YETI if you want a roomy, reusable container for meals and wet foods, and you value a locking lid over a submersion-proof design.
GreenJoy Pet Food Storage Containers: Best for Dry Kibble and Treats
This two-pack is made for small portions of dry pet food, not for carrying human meals or liquids. Each container holds approximately 2 pounds or 2.5 liters and includes a measuring cup, which can make feeding pets on a camping trip or road outing more organized.
The translucent BPA-free PET bodies let you see how much food remains, and the compact containers measure 5.9 by 3.5 by 10.8 inches each. Secure lids are intended to help keep dry food fresh and protected from moisture. However, the product information does not describe them as waterproof or suitable for submersion, so they should not be relied on to keep food dry if a cooler fills with meltwater.
Compared with the YETI and SubSafe, GreenJoy is the specialized option: it offers two separate portions and measuring cups, but lacks their stated leak-proof or waterproof claims. It may suit pet owners who want to keep kibble and treats separated inside a cooler or travel bag, provided the containers stay upright and away from pooled water.
Pros:
- Two containers help separate different dry foods or treats
- Measuring cups are included for portioning
- Translucent bodies make food levels easy to check
- Compact size suits small pets and travel supplies
Cons:
- Designed for dry pet food, not meals or liquids
- Not specified as waterproof for wet or submerged cooler conditions
Verdict: Pick GreenJoy for compact, portioned pet-food storage, but choose another option if your main need is a waterproof container for a cooler that may collect meltwater.
SubSafe 3-Piece Sandwich Container: Best Waterproof Pick for Subs
SubSafe is a three-piece twist-lock container made for sandwiches, especially subs that can get squashed or damp in a crowded cooler. Its listing describes it as waterproof and able to float, making it the strongest match of these three for boating, fishing, beach trips, or other outings where the container could get wet.
The 12.5-by-4-inch design fits both 6-inch and 12-inch subs. Thick plastic is intended to resist crushing under other gear, while the BPA-free container is dishwasher-safe and reusable. Its parts can also serve as cups or bowls, and the smaller section is described as usable as a cocktail shaker.
The long, narrow shape is useful for sandwiches but less convenient for salads, leftovers, or foods that need a wide opening. It is also a more specialized choice than the YETI: choose SubSafe for protected sandwiches and water exposure, while the YETI is better suited to a range of meals and liquids.
Pros:
- Designed to be waterproof and float if dropped in water
- Twist-lock design is made to keep sandwiches dry and contained
- Crush-resistant construction helps protect food in a packed cooler
- Reusable, BPA-free, and dishwasher-safe
Cons:
- Long, narrow shape is less suited to general meal storage
- Its sandwich-focused design may take up awkward space in some coolers
Verdict: Choose SubSafe if keeping subs protected from water and pressure is your priority; for soups, sauces, or everyday meal prep, the YETI is more versatile.
How to Choose Waterproof Food Containers for Coolers
Match the seal to the kind of water exposure
A leak-proof lid helps keep food and liquids contained, but it does not automatically mean a container can be submerged. If meltwater, splashes, or a drop overboard are concerns, look for an explicit waterproof claim. Of these picks, SubSafe is specifically described as waterproof and floating. The YETI is described as leak-proof when its lid is locked, while GreenJoy is intended to protect dry food from moisture rather than water exposure.
Choose a shape and capacity for your food
Think about the food you plan to pack before choosing a container. The YETI’s 8.5-cup capacity and rectangular shape suit meals and leftovers. SubSafe’s long, narrow form is built around subs and sandwiches. GreenJoy’s two small containers are sized for dry pet food and treats. Measure your cooler’s usable space, including its height and the room needed for ice packs, before buying.
Consider whether crush protection matters
Food can get pressed by drinks, ice packs, or other gear when a cooler is full. SubSafe is described as crush-resistant, which makes it a useful option for sandwiches that could be flattened. For other containers, consider how you will arrange your cooler and avoid placing heavy items on top of foods that can be damaged.
Check materials and care instructions
Look for material details that fit your needs, especially if you plan to use a container often. The YETI is made from Tritan Renew, is certified BPA-free, and is dishwasher-safe. SubSafe is BPA-free and dishwasher-safe. GreenJoy uses BPA-free PET and is designed for dry pet food. Follow the product’s care guidance, and do not microwave a container unless it is specifically marked as microwave-safe; the YETI’s lid should be removed before heating.
Plan for how you’ll serve and clean the food
A wide container is easier to fill and use for meals, while a tube-shaped sandwich holder can protect a sub without needing a bag or wrap. If you’re carrying pet food, measuring cups can make portions easier to manage. Dishwasher-safe designs may simplify cleanup after a trip, but check that all parts of the container can go in the dishwasher before washing.
FAQs
Which container is the best choice if a cooler may fill with water?
SubSafe is the clearest fit in this group because its product information describes it as waterproof and floating. The YETI is described as leak-proof, but not as suitable for submersion. GreenJoy is designed to help protect dry food from moisture, not pooled water.
Is the YETI container suitable for soup or sauce?
Its locking airtight lid is described as leak-proof for foods such as soups, stews, and sauces when securely closed. Keep the lid on during transport, and remove it before microwaving.
Can I use the GreenJoy containers for human food?
The product is presented as pet food storage for dry kibble and treats. Its description does not establish it as a container for human meals or liquids, so choose a product specifically suited to those uses if that is what you need.
Will the YETI fit in any cooler?
It is listed as fitting some YETI bags and coolers and as usable in standard coolers, but fit depends on your cooler’s layout. Its dimensions are 10 by 7.3 by 3.2 inches, so measure the space where you plan to store it.
Which option is best for protecting sandwiches from being crushed?
SubSafe is specifically described as crush-resistant and is shaped to hold 6-inch and 12-inch subs. It is the most focused choice for sandwiches in a packed cooler.
Are these containers microwave-safe?
The YETI is described as microwave-safe with its lid removed. The supplied details do not identify the GreenJoy or SubSafe containers as microwave-safe, so do not microwave them unless their product instructions explicitly allow it.
Final Recommendation
For most cooler meals, the YETI offers the broadest use, with an airtight locking lid, roomy capacity, and freezer-to-microwave convenience. If water exposure and sandwich protection are the main concerns, SubSafe is the more appropriate pick because it is described as waterproof, floating, and crush-resistant. GreenJoy is best reserved for organizing dry pet food and treats, rather than serving as a waterproof container for human food or wet cooler conditions.
