Sylph have the following adjustments within the Realm setting.
Type: Sylph are Medium creatures that count as an outsider (native) and a humanoid (human) for any effect related to race, including feat prerequisites and spells that affect humanoids.
Sylph gain the following additional abilities -
Like the Wind: A Sylph gains a +5 foot bonus to her base speed.
Whispering Wind Sylphs w gain a +4 racial bonus on Stealth checks.