- DURABLE STRAW LID FOR STANDARD MOUTH: This straw lid is an ideal replacement for your Hydro Flask standard mouth bottles. Designed with a robust handle for easy carrying, you can confidently take your Hydro Flask on the go without fear of dropping it. - USER-FRIENDLY DESIGN: The straw lid opens effortlessly and secures tightly, enabling one-handed drinking. Simply flip the straw top and sip, making it perfect for sports, camping, hiking, and other outdoor activities. The wider finger loop adds comfort when carrying your flask, ensuring hydration is easily accessible wherever you are. - COMPATIBILITY: This straw lid is specifically designed for Hydro Flask standard mouth bottles (18, 21, and 24 oz with a mouth diameter of 1.91"). It is also compatible with Simple Modern Ascent, The Coldest Water Standard Mouth, and Klean Kanteen Classic Bottle. Note: This lid is not suitable for wide mouth Hydro Flask bottles (12 or 18 oz). - VALUE PACK: Your purchase includes two durable straws and a straw cleaner. Made from high-quality, BPA-free materials, this straw lid is built to last, making it safe and easy for both adults and children to use. Opt for this practical sport cap as a replacement lid for your Hydro Flask standard mouth to enhance your hydration experience. - PRACTICAL USE SCENARIOS: Whether you're at the gym, on a hiking trail, or enjoying a picnic, this straw lid provides a convenient and efficient way to stay hydrated. Its robust construction and thoughtful design make it a reliable companion for all your adventures.