LIGHTWEIGHT, ON-THE-GO FLASK: The Sport Flask’s compact design will easily fit in one hand. This flask will hold up to 350ml of liquid. REHYDRATE ANY PLACE, ANY TIME: The simple clasp on the lid will pop open with one hand – perfect for taking a sip while mid-run or cycle! SAY GOODBYE TO SPILLS: The airtight seal in the Sport Flask’s lid prevents your beverage from spilling – even if you’re going for your PB! DURABLE: Don’t worry about dropping your flask while on the move – the robust 18/10 stainless steel body is unbreakable. KEEPS DRINKS REFRESHINGLY CHILLED: Innovative vacuum insulation technology will keep your drink cool for up to 24 hours – or hot for up to 8 hours!