There are a few styles of insulated stainless steel water bottles to choose from:
With Straws Thermos Foogo, Thermos Funtainer and Thermos Intak 530ml are all made the same way with straws. I personally love it because I can drink water from those bottles without tilting my head (great when driving!). But I have met many people who don't like the straws because they can't get great flow of water out.
Just Holes For those who would like greater water flow, you can choose between Thermos Hydration 500ml or Thermos Intak 770ml. Thermos Hydration 500ml has a push-up button whereas Thermos Intak 770ml has a screw on lid.
Straws or Holes? Ecococoon designed their own unique cap which offers the benefit of both straws (ie not dripping/spilling) and holes (great water flow). The bottle has no straw. Where you drink water from is a specially designed hole with drip stopper.
Can Attach Sports Caps Cheeki's insulated stainless steel water bottles give you the option to attach sports caps on if you need to. They are available in both 600ml and 1L capacity. Not as pretty looking as Thermos (in my opinion) but the insulation property is excellent.
Travel Mug Style Both Innate KAZE and Klean Kanteen's insulated range can be used like travel mugs. They are quite different to each other so please visit their individual product page to get detailed product info.