I take an insulated and non-insulated on trips. I like this Thermos as an insulated bottle. It is great for hot drinks or keeping liquids cold. For a non-insulated bottle I like Camelbak products with a bite valve. The bite valve allows you to drink water through a straw but leak proof.
Shak
http://www.thermos.com/products/vacu...er-bottle.aspx
http://www.camelbak.com/Sports-Recreation/Bottles.aspx