Type: Stainless Bottle w/ Built-In Straw 

One push open!
The straw is made of silicon, then gentle to your mouth.
It's easy to do dishes as it has widemouthed.
Come with a spare straw.

Type: One-Touch Folding Bottle DX500ml 

In the lower part of it, there is a hole for draining water !You can hang it freely.
It's easy to take the mouth off from the bottle. It's also easy to wash.
Open with one push!
The entire thing can be rolled up and they are extremely light .