At most, some of the fabric is matted down from a normal amount of dog slobber, but I threw it in the wash not too long ago, and it came out as good as new.

Source: https://mashable.com/roundup/best-chew-toys-for-dogs

"For some reason they were really dry, matted, grown out, but the hair in itself was such poor quality."

Source: https://www.thesun.co.uk/fabulous/24555222/hairdresser-shocking-hair-extensions-scammed/

Uncombed, matted hair and dirty faces.

Source: https://www.saturdayeveningpost.com/2023/08/the-19th-century-photographer-who-shined-a-light-on-american-poverty/

'When RSPCA animal rescue officer, Chloe Wilson saw him for the first time, she was shocked by how matted he was.'

Source: https://www.dailymail.co.uk/femail/article-12127903/Unwanted-pooch-unrecognisable-makeover-try-new-owner.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

When some 'dreadlock' is found in the hair, it is linked to the superstitious belief that such matted hair is blessing and cutting them could invite the wrath of a goddesses," she said.

Source: https://www.freepressjournal.in/pune/nandini-jadhavs-jat-nirmulan-efforts-honoured-through-exhibition-in-pune