Yep, removable using four sets of unobtrusive plastic snaps. They fall just above the hem of the outer shorts.
I love these shorts! Lots of details like zippered side vents, well thought out pocket placement, removable liner and bomber fabric selection make them my new favorites. Im not looking forward to the pile-up that could dent these! Left one star off due to how small they run and increased length due to sizing up. Definitely purchase one or two sizes up!