I have 2 children (3yr and 7 weeks). We settled on the City Select stroller and while I am very satisfied with the other baby jogger offering and accessories the carry/travel bag was terrible. The material feels very cheap and i knew it wouldn't stand up to the travelling we do.But enough about baby jogger...this is about the prampack. Yes its quite a bit more expensive than other travel bags but believe me its worth it. The material is very durable like a heavy canvas although im fairly certain its a thick nylon weave. Normally i only ever gate check it when i fly because we use the stroller in the airports, but i would be confident my $1000 stroller investment would be well protected even if we checked it with our baggage.It has sturdy yet flexible boards that help the bag keep a shape to prevent dings and conform enough to keep parts from banging together in the bag. I also LOVE that it rolls up so you can easily carry the bag around or stow it under seat while using the stroller. Some strollers may not have a large enough space for it, but those are probably all strollers too small for the bag anyway.This bag would work for any travel system type single stroller and most double strollers. If you're unsure you can ask Stokke via their website they're very helpful.I can easily fit my city select stroller with seat, car seat adapter, a graco car seat base, and a few accessories without having to remove any wheels or anything. It also fits with the 2nd seat which i tested at home, but since my daughter is too young for it i haven't travelled with that yet.Definitely check out lots of pictures so you can see how the bag works. its basically several flaps with sturdy straps you clip and then pull the elastic cover over (which also clips in place). It seemed odd at first but after using it i realize what a fantastic design it is. I bought it after reviews from another user also disappointed with the city select bag. Anyone with a fullsize or double stroller will love this bag and get YEARS of use out of it. I can't praise it enough.My only " complaint" would be the price, but honestly comparing to other bags on the market you can see where the money spent on this goes to quality. Some other users have complained the bag doesn't "stand up" which is true, but most folded strollers distribute weight so awkwardly anyway i never expected it to. No bag i have ever used in the past for my previous travel system or compact stroller stood up either. But THIS bag will stand up to the rigors of travel and the exceedingly rough handling and packing of airlines.