these babies need room to work!

Verified Buyer Reviewed by mkcmem from memphis tn on Wednesday, January 20, 2010
I bought these to wear inside my waders when I fly fish in the winter. I noticed that i don't feel much heat while i am wearing my boots and walking. once i take the boots off and the inserts are less confined (still in my waders but not in the boot) i can feel the heat, but that doesn't do me much good. might work better in a non-neoprene environment.
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