The ST-1 is liked by the missionaries I talked to here, and is normally $250, with the sale is $125 and if you sign up for the app and get 15% off code you can get it down to $106
I think it's only on select styles, but the traditional black and brown ones are on sale for sure right now.
... We paid close to full price (got a 15% off discount in the store) a few weeks ago, so I was pleasantly surprised to see them on sale when coming back to get a second pair today.