Today on Amazon, you can get the highly-rated MIU COLOR® Stylish Portable Real Borosilicate Glass Water Bottle with Nylon Sleeve AND 2 Cleaning Brushes for $15.99 (reg. $29.99).
However, use the code 8GMYGXXN and you’ll save $4 making the new total $11.99 with FREE Super Saver Shipping and $35 purchase or FREE with Amazon Prime.
Note: you will need to select the 18.5 oz size from the drop down menu and the promo code appears to only work on the water bottle with the grey cover.
Pricing was current when the post was published, however Amazon prices change often, so please check before you buy.