Hi, thanks for writing to HCM.
Presence of a baker's cyst
in the knee indicates that some amount of degeneration is present in the joint.
So its always better to offer some protection to the degenerated knees while indulging in impact sports like skiing.
I suggest a HINGED KNEE BRACE
to be worn as it gives support as well as freedom of movement in the knee joint.
Hope this information is helpful. Good day