https://sport.woot.com/offers/hydro-flask-40-oz-wide-flex-straw-cap-5 40-Ounce Hydro Flask Wide Mouth Stainless Steel Insulated Bottle w/ Flex Straw (Sunglow)on sale for $17.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is $6 per order.