We have twin identical boys and used the mountain buggy nano duet stroller and loved this cocoon in their early years - so we could walk, get air and run errands with our little ones! Super lightweight and convenient! 

Perfect for parents of twins wanting a simple, lightweight, newborn solution that seamlessly clips on and off the buggy - and for use as an off-buggy lie-flat sleep solution.

Your twins can now continue their unique bond, and lie close together in one shared, safe and cozy environment - enabling that same sense of togetherness they had in the womb.

cocoon™ for twins pairs perfectly with nano duo™, and is also compatible with duet™ and duet™ as a single.

Look here for specifications: https://us.mountainbuggy.com/products/cocoon-for-twins