Hydro Flask's 32 Oz Wide Flex Straw Cap belongs to their large collection of products. The TempShield double-wall vacuum insulation keeps drinks cold for up to 24 hours and hot for up to 12 hours. The Insulated Flex Straw Cap is leakproof when closed, making it a convenient option for on-the-go use. The cap is made with 18/8 pro-grade stainless steel for durability and a pure taste, with no flavor transfer. The Wide Mouth opening is ice-cube friendly, and the Color Last powder coat stays clean and colorful. The bottle fits most backcountry water filters, and it's BPA-Free. The cap is also dishwasher safe. Please note that the Flex Straw Cap is not intended for use with hot liquids and should not be used on a stove, in a microwave, or freezer. This product is suitable for both men and women, and it's a great addition to any outdoor enthusiast's gear collection.