THE PERFECT COMBO - LOOKS + SMARTS! The BOULDER is a high performance, vacuum insulated hydration vessel that will keep your drinks hot or cold, hour after hour. Made from premium 18/8 stainless steel, it features our signature TriMax® triple insulation - the 24 oz has been tested to keep liquids cold for 40 hours and hot for up to 12 hours. The Reflecta lid is insulated and lined with stainless steel, enhancing temperature retention and preventing drinks from touching plastic. This two-piece lid is easy to grip, has a wide mouth for easy filling, and a soft silicone spout for a comfortable drinking experience. The lid is securely attached to a sturdy carrying strap, so you always know where it is, and the leakproof seal keeps your drinks in the bottle - where they belong. Working up a sweat is natural when you exercise but who wants a bottle that sweats? No worries here because there’s never any condensation, so your hands and bag stay nice and dry. A handy bonus is the stainless steel removable strainer for tea, fruit, and ice cubes - ice will clink in the bottle and not against your teeth. The fitted silicone bumper adds protection against everyday knocks and drops, along with providing a quiet “landing”. Keep this versatile bottle in your car cup holder or toss it into a tote and bring it to yoga class, the gym, on the trails, or to work to stay healthily hydrated through the day. The BOULDER is available in a choice of durable powder-coated colors and unpainted, natural stainless steel.