Integrated Bag Attachment - To clip to your gym bag with the included carabiner. Elastic Carry Strap - to avoid embarrassing spills. Comfortable and Breathable Sleeve Design - can be Easily removed for maximum versatility and washing. Keep Your Shakes Fresh - with this insulated protective sleeve accessory. Perfect for cold or warm drinks. Compatible with all of the PROMiXX Vortex Mixers, MiiXR+ PLUS, iX-R, MiiXR PRO, MiiXR AA.