The Hydro Flask Medium Closeable Press-In Lid in black features a secure press-in design that offers convenience when transporting your favourite beverages. Its compatibility with various cup and tumbler models effectively protects against spills even during dynamic activities. Hydro Flask Medium Closeable Press-In Lid black - features: Press-in closure that minimises the risk of leaks; Fully compatible with the Hydro Flask Tumbler 650 ml; Fully compatible with the Hydro Flask Tumbler 473 ml; Fully compatible with the Hydro Flask Mug 355 ml; BPA-free, safe materials for health; Easy one-handed mounting and dismounting during activities; Easy to clean design with smooth surfaces; Precise fit prevents accidental lid openings; Carefully selected materials ensure chemical neutrality; Dedicated solution for accessories from the Hydro Flask series.