Perfect CompatibilityBILTRTE water bottle bag is specifically designed for the Stanley Quencher H2.0 Flowstate Tumbler 30 oz 40 oz with Handle. It provides a snug fit and features fine stitching, making your Stanley Tumbler even more stylish. Multi-functional DesignThe detachable and adjustable shoulder strap is soft and padded, allowing for easy adjustment between 27.5 in and 50 in to fit most body sizes. You can use it as a shoulder bag or handbag and effortlessly detach the strap when not needed.