what is the mechanism inside? how much liquid does it hold? how does the sport cap open?
1601071
it holds approx 12 oz., it just screws easily on the bottle and you just pull the little black knob up and it the water comes out, push it down to stop. Mine also has a ring on the neck w/ a cap so that you can cover that mouth piece. I really like it. I didn't want a really big one for in my car.
1601072
It holds 12 oz. It's hrs to describe the mechanism inside. You pull up the black piece shown in the picture and them you can drink. You push the black piece down to close it. However there are tops you can purchase if you choose. I like this one for myself, but my 2 yr old uses the sippy cup lid which doesn't spill or leak at all when its left on its side.
1601073
This holds at least 8 ounces but it is small, easy for a child to hold and carry. The entire cap screws off for washing and the black cap pulls up for drinking or pushes down for carrying. There is no mechanism inside. My grandchildren love theirs.
661560
Sorry for the late reply, basically what everyone else said... Slides down into the mouth of the bottle, fits snugly so it doesn't shift easy, cap can still screw closed.
2192579
Push cap. Not like a detergent bottle. Press on one side and it flips up for easy dispensing. Hope this answers your question!
441998
The tops are like a cap that you push on to lock them in and push up on them to open. Then you can drink from the bottle as if it were a soda can (I guess that would be upside down). You do not need to squeeze the bottles to get the water out, gravity does the work for you. These bottles are great for hikes or the gym. They keep a solid lock when the cap is pushed down and this keeps water from coming out if dropped or if you want to lay them on their sides. I hope this helps.
2125097
There are two slits, one on each side of the top that screws into the Thermos. There is a button in the middle that leads to a spring loaded disk that seals the flow of liquid. Press to open, press again to close. Here's a link to some pictures: http://imgur.com/a/4ZRyL
1332826
There's a cap that twists open so when it's closed, it's fairly flush with the ball.
2210891
It has a tether. It is a ball too large to fit through the opening, connected to the cap by a plastic "string."
2014859
hello, yes there is a fairly thick seal in the inside of the cap. The liquid truly locks in.
414642
Hi..the locking mechanism is basically the same, but this bottle is bigger..not in the volume it holds, but simply size. Also, the top is huge in comparison to the backpack version and very delicate..pretty much one drop and it's done. I personally also didn't like how it directs the hot liquid into your mouth..have to press lip against it in a way that you often got burned. Finally the lid was so big, the top would tap your forehead while tipping the bottle to drink. Hugely annoying. I tried it because I liked the choice of colors, the little hook/ring on the back and still often wish the backpack version had some sort of clip option. All that said, however, I still use and love the backpack version. I have dropped it/had it fall out of my bag quite a few times. The bottom ring is cracked, but it does not affect the performance of the bottle...which is awesome!! Hot coffee for HOURS that stays in the bottle and not in your bag. I used contigo for a long time...until i found this one that I use daily. Backpack version is worth it, wouldn't say the same for this one, though.
1199972
It´s a travel lid (solid cap) but it doesn't close very good, well it closes but the liquids pour a little... But in general i love the mug, I rarely use it to take away.
441995
The white cap, which is attached to the lid, pops open allowing you to tip the bottle up to drink from it. You can squeeze the bottle but it is not necessary as the opening is the same size as a standard water bottle. Very good seal and the attached ring holder makes walking while holding the bottle very convenient.
1097598
it holds a pint...I am a pig so I would want to drink a little more smoothie. But the lid does not leak and has a built in rubber gasket.
1098853
It sort of works like a cork, you can place it in the bottle, and directly pull it out pretty easily, but only if the bottle is being held firmly in a holder of some sort, then the cap is very easy to pull in and out.
691994
Simple, The rubber tab pulls up and you poor the liquid in and push the rubber back. It seals tight. I am very happy with this product and have purchased several more for friends.
903811
It is a screw on lid, very secure and easy to open or close. It does have a tab which closes over the opening in the lid to prevent spillage but it is also very easy to open/close. This opening is what allows you to drink from the thermos.
1541299
It's a pull up plastic spout on the top. Just pull up once and then twist cap on and off for use. We use this to fill up a more convenient counter top pour bottle.
900242
The mug is stainless inside and outside. You can fill it right up to within 1/8" of the rim because the cap screws onto the very top. Excellent buy when I got it, easy to clean and it has held up very well over the past year.