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No issues for us so far (about 4 months with the car). I had a bit of dye transfer from jeans after a few months but it wiped up really easily with a damp towel and some pressure. We've got two car seats (one front facing, one rear facing). I read up on seat protectors. A bunch of horror stories of permanent dye transfer, melting products, etc. from supposedly safe products. I went with the Brica protectors and no issues.