The Iron Flask Sports Water Bottle is made of stainless steel and features double-insulated walls that can keep 32 ounces of cold liquids cool for up to 24 hours and hot liquids warm for up to 12.

10 Best Insulated Water Bottle Straws Updated 12th June 2025 Recombu Best Lists Sports ... It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. *NOTE: ONLY the 14 Oz, 18 ...

The Standard's journalism is supported by our readers. When you purchase through links on our site, we may earn an affiliate commission. The benefits of staying hydrated are unmatched. From giving ...

(12 hours hot / 24 hours cold) Built-In Water Filter Straw: Enjoy filtered water wherever you go. The included activated carbon water filter reduces chlorine and odor for better tasting water.

The original straw resembled a blue plastic flute but could filter up to 1,000 litres of contaminated water without the need for batteries or fuss. Since then, the technology has evolved and ...