Leakproof when closed Straw is easy to trim to fit Insulated Flex strap is easy to transport and comfortable to carry BPA-free & dishwasher safe Hydration on the go just got easier with the leakproof, insulated Flex Straw Cap. Add it to your favorite standard mouth Hydro Flask bottle to easily enjoy cold hydration anywhere.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }