Switlik airline infant life jacket (ILV-20) is a dual chamber, 23-pound
buoyancy Infant Life Vest, (FAA/TSO-CI3d defines "infant" as a wearer
with a weight less than 35 pounds).* The underarm configuration allows
this vest to be used by wearers whose shorter necks prevent use of the
standard "Yoke-type" vest.
Note: All of Switlik Parachute Company's "Airline Passenger" Life Vests
are also provided for child (35 pounds and above) use.