Recyclable Stainless Steel – high grade stainless-steel cup that's impact resistant, long lasting, soft to touch and recyclable , Vacuum Insulated Bottle – dual-wall insulated cup to keep your supplement and protein mixes perfectly chilled , Superior Mixing – integrated and easily-removable agitator for the perfect mix – no rattling blender ball, no mess , Leakproof Lid & Carry Loop – ergonomic flip-cap sports lid with ultra-performance seals and convenient carry-loop for portability – leakproof guaranteed , Easy to Clean – snap-fit agitator and curved cup makes for easy cleaning. Great Fitness Gift! Comes with 1-year PROMiXX warranty and industry-leading customer service