https://sport.woot.com/offers/hydro-flask-40-oz-wide-flex-straw-cap-ss-3?ref=w_cnt_sc_is_1_tl 40-oz Hydro Flask Wide Flex Straw Cap (Stainless Steel Lime) on sale for $14.99. 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 otherwise $6 per order.