Timberland (UK)
Great customer experience here. Check out the add to cart button when you hover over it, without selecting your size, you simply get a title letting you know. No ugly JavaScript error messages after you click the button. There are also great multiple product views, with easily recognizable swatches that also show the available sizes. On a side note, it’s also built with Divs/CSS unlike it’s US counterpart.
What do you think?