Is the opening to the main compartment the curved part at the top (like semi-circle) or is the opening much larger?
1889341
The semi-circle is another pouch. It doesn't have lots of space. We usually stick a small travel wipe pouch because it is easy to get to. The main compartment opens pretty wide. The zippers are just after the semi-circle. And the zippers don't go all the way down sides. The bag has been really convenient for our first child.
1889342
The curved part is a small compartment. The main compartment is much larger. It opens very wide.
1920172
I have not measured, but that sounds right, it's very large when open. I love mine.
773635
It is about 7 inches at the opening. The interior is another 2 inches roughly
2013594
Yes, it is. The top buckled portion is basically an extra shell on top of the compartment. This bag is very well padded and holds everything nicely in place.
857499
You cannot open it completely, but it does open wide enough to fit large things like luggage.
1203317
The opening is about 2.5" x 1.5", which is larger and an improvement over the old model.
757809
It opens from the long side like a suitcase would. There is room inside for a few small extra toys as well.
53371
The seat is more egg shape instead of circle shape. It gave me more room up front.
471147
If you are comparing to a coffee travel mug, yes the opening is bigger. I have no complaints regarding the flow of water. I have ordered these bottles three times. The bottle seals and will not leak even when turned upside down. It also has a clip, so you can attach it to your belt loops and keep hands free. I love the hands free ability to carry the bottle especially when on long walks.
860128
Almost the same as when opened. It doesn't fold flatter, as pedals and handles and base still stick out, it just decreases the width of the center space by about 3 inches.
204772
no it opens from the top with a zipper. the opening is oval in shape and large enough to comfortably put everything inside
1981063
There is a circular hole at the back of each of the four compartments. The circles are about 3.5 to 4 inches in diameter, from a visual inspection.
1040433
The top does open. There isn't a secret drawer underneath the top it is a place to place rings and things like that.
308256
Its a large compartment and deep but oval shaped instead of a circle. You could fit a charcoal disk cut down to size or folded over.
1558370
The front flap of the bottom rolls up and is completely mesh, it even has a zipper that totally opens the front. I sometimes unzip the front at home because my pup jumps in and out because he likes to sleep in it. The upper compartment has mesh on the top only. No, the sides and back are fully canvas.
1264926
double zipper around both parts (the main storage area and the smaller front pouch)
2267133
I'm assuming you are referring to the one at the back. The zip opening is about 15cm long. When opened, you can place items up to a maximum depth of about 8cm but that would be a squeeze. That said, you can also make use of the space meant for the water bag as well as the pockets at the hip belts.