Thanks to high-quality foam insulation and food-safe inner lining, food and drinks stay cool for hours. The exact duration depends on factors such as outside temperature, amount of contents and how often the bag is opened. Additionally, if you use one or more cooling elements, everything stays fresh even longer - ideal for picnics, beach days or on the way to work.

The inside of the cooler bags is splash and moisture resistant and can be easily cleaned with a cloth. After use it is advisable to wipe the inside dry and let the bag air out for a while, so that odors do not get a chance. This keeps the bag fresh, hygienic and ready for the next use.

Retulp uses strong, durable materials that will last and withstand daily use. Most cooler bags have a sturdy exterior made of recycled textiles or nylon, combined with an insulating layer and a food-safe PEVA lining. Some of the collection is even made of recycled plastic from old refrigerators. All materials used are tested and suitable for direct contact with food.

Sure. The Shopper Cooler Bag (49.1 liters) is ideal for errands or beach days, while the Bicycle Bag Cooler Bag (27 liters) is specially designed for traveling. The Fridgebag Backpack (14 liters) and Backpack Cooler Bag (16.5 liters) are comfortable for everyday use and keep lunch and drinks cool during work or school. The compact Lunch Bag (9 liters) is convenient for one person and easy to carry in a purse or backpack.

The insulation works both ways: hot food also stays hot longer. Still, the bag is primarily intended for refrigerated transport. If you want to keep hot meals warm for hours, use a double-walled food pod or thermos cup.

With a reusable cooler bag you consciously choose against disposable packaging and plastic cooler bags. In addition, with your purchase you support Retulp's mission to reduce plastic pollution. Part of the proceeds go to projects such as Stop the Trash by Club Kakatua, which filters plastic from rivers before it reaches the ocean. That's how you combine convenience with a positive impact on people and the environment.

Always let the bag dry thoroughly after use and store it open in a dry place. Avoid sharp objects on the inside to prevent damage to the insulation layer. With proper maintenance, your cooler bag will stay in top condition for years.

A Retulp cooler bag can be used hundreds of times, whereas disposable cooler bags often tear after one use or end up in the trash. So you save resources and waste, and choose quality that is beautiful, practical and eco-friendly.

The Fridgebag is the ultimate example of circular economy. In fact, this bag is made from recycled refrigerators! The material from old refrigerators is processed into a strong and insulating fabric. It's a funny and fitting story: an old refrigerator that keeps your drinks cool again, but in the form of a bag. With this, you really have a unique and sustainable talking point in your hands.

Yes, we do recommend it. The cooler bags have excellent insulating properties, which means they keep the temperature inside. However, they do not cool on their own. To keep your lunch or drinks ice cold for hours on a hot day, add one or two frozen cooling elements or ice cubes (in a bag). That way you'll get maximum benefit from the insulation.

Sure. Unlike hard plastic coolers that take up a lot of space in your garage or closet, our cooler bags are made of flexible material. When the bag is empty, you can easily fold it flat. As a result, it hardly takes up any space and you can easily keep it standard in your car or bike bag for unexpected errands.

This varies by model. The small lunch bags are perfectly sized for a lunch box and a piece of fruit or a bottle of drink. The larger cooler backpacks and shoppers offer considerably more space; they can easily fit several 1.5 liter bottles, or a complete picnic set for four including snacks and drinks. Check the product specifications for the exact contents in liters.

Absolutely. Comfort is essential, especially when the bag is stuffed. The cooler backpacks feature adjustable, padded shoulder straps that distribute the weight well across your back. The shoppers and handbags have sturdy, wide handles that won't cut into your hands or shoulders, even when the bag is more heavily loaded.