Eddyline strongly recommends using a cockpit cover when storing your kayak outside.
Medium: size fits these current Eddyline models: Fathom, Sitka ST, and Rio.
Medium: also fits these retired Eddyline models: Merlin LT, Merlin XT (1996-2001), Fathom LV, Night Hawk 16, Falcon S18, Samba, and Raven.
Large: size fits these current Eddyline models: Sky 10, Skylark, Equinox**, Sitka LT, Sitka XT, and Whisper CL.
Large: also fits retired Eddyline models: Night Hawk 17.5, Merlin XT (2001-2007), Journey, Denali, and Wind Dancer.
Eddyline large cockpit covers fit Eddyline's Equinox, they do not
fit roto-molded kayaks of a similar name purchased at big box stores.