Ties have no tag to prove they are made of silk. Every other real silk tie I've ever bought, whether it's a bow tie or a tie, has a tag that says it's 100% real silk. I believe they are actually polyester and they are advertised as silk. Assuming they are polyester I would say they are fine as long as you understand that they are not real silk.
Secdtie Men'S Classic Stripe Jacquard Silk Tie For Formal Parties & Suits
22 Review
Elegant HISDERN Ascot Ties & Pocket Square Set For Men'S Wedding Parties
26 Review
Classic Floral Paisley Ties For Men - Extra Long Silk Necktie And Pocket Square Handkerchief Set For Formal Weddings
21 Review
Stylish Check Plaid Bow Tie And Pocket Square Set For Formal Events And Weddings
22 Review