Great material but bunches up as a cover
I loved the Idea of this sleeve for my cervical collar as all the collars I find are covered in cotton fabric which is great, but after constant wearing the skin on my under neck became very irritated.  The material on this cover was great and stopped the irritation under the neck, but created a new problem—even though the outside looked fine, the inner around my neck bunched in different spots and caused irritation to my scar from surgery.  I believe the best of both words would to make a collar with the material of this sleeve—which in turn wound be the best sleeve.
Rating: 2 stars