Choosing a Double pushchair twin; Mixbookmark says,

When you have twins, you'll need a double pushchair to take them from A to B. Our range of twin prams includes twin buggies that can be set up in a variety of ways to meet your requirements.

Choose a stroller newborn which can be folded in one step and easily lifted into your boot. You may also prefer an ultra-lightweight design, particularly when you're on busy high streets.

Side-by-Side

These are the most common type of double pushchair and usually can accommodate two children together. They tend to be wider than single pushchairs prams, meaning they're less agile on the sidewalk and can be a bit difficult to navigate through the kerbs with a car attached. However, the extra width can mean that they're often a lot easier to navigate through doors and are more evenly distributed making them less burdensome to carry on your back.

They can be used as a twin pram and travel system from birth and many models can accommodate a carrycot or 2 car seats. Some models can be converted to a single mode, with a basket beside (like the Cybex Venus).

One of the most excellent examples of this is the Bugaboo Donkey 5 which, in Twin Mode, allows you to put the rear seat and a carrycot side-by-side. This creates a completely enclosed space for twins, and is ideal for newborns. This folding pram is also equipped with a couple of very cool accessories, such as the newborn cocoons which can be put on face either way (for a twin-facing pram) or facing forwards (for a normal single). It's not as lightweight as other options, but it's very well thought out.

Lightweight

Cybex is known for innovation, and this single-to-double pushchair is no different. Its innovative frame expands widthways to accommodate a second seat, and you can use it as a twin right from birth, thanks to the addition of two infant cocoons (PS59 each) that provide enclosed, lie-flat areas for babies. The large shopping basket that is behind the seat can be used in mono mode for one child. It has both front and rear suspension, so it can handle bumps and uneven surfaces better. Our reviewers picked this car as their top choice.

Available in a variety of elegant colors.

Tandem

If you are planning to have twins, you'll require a tandem pushchair. This will allow the children to sit together and look at each other. They are perfect for visiting the zoo as the children can look at the animals together. They are also great for parents who must keep one eye on their toddler and the other eye on their infant, as they can see both at the same time.

Some tandem pushchairs are incredibly flexible, as they can be converted to single mode. This is especially handy for families with more than two kids (or just your eldest doesn't need a buggy anymore). This will save you from having to store a buggy that's empty which can be expensive.

The Cybex Venus, for example can be used in mono or double mode. Its frame can expand to accommodate a second seat. It's not the lightest of pushchairs however it does come with an ample basket that can be placed behind the front seat in double mode, or in the back when it's in mono mode. The seats can be set so that they face each other, or one could be placed higher so that it can be able to look over the other and observe what they're doing.

Some double tandem pushchairs such as the Joolz Geo 3, are able to seat one above the other or side by side. The slim, sleek frame makes it easier to maneuver through doors and aisles in supermarkets. Some models can also be used on uneven terrain, or for an exercise walk due to their wide rear wheels and four-wheel suspension.

A tandem pushchair could also be used to carry two carrycots, or a car and buggy seat. This allows you to build a travel system from the outset and save money on additional purchases. It's worth remembering that tandems can be heavier and longer than single pushchairs, and may feel less stable when as you go over uneven surfaces. They also need dismantling in order to fit into cars.