Yes, some of them. 7 of the 8 ASICS GEL KAYANO 20 colourways we checked contain no animal materials and are confirmed by both the materials list and the product description, plus 1 more that looks clean but publishes no description to cross-check. 0 contain leather, suede or another animal material.
Confirmed animal-free (7)
Clean in both the material label and the product description.
The material label is clean, but no product description is published, so a minority material such as a suede overlay cannot be ruled out. Check the photos.