[maggiesmom_2007]

Cotton or soft coats tangle super easy they reflect no light and tend to go a clerical grey in some cases as the yorkie gets older.
Modified coats are a blend of the soft and silk together, they can have a shine but not as great as a silk coat. some can be cool to the touch also. they tangle less
Silk coats are very cool to the touch and sometimes will feel like they are still wet as you dry them after a bath and can be thin very unlikely to tangle and if they do super easy to brush out. Wirey coats or as most breeders know them as Hard silk have a rougher texture, they break easily and don't achieve any great lengths.