1 Merino is one of the softest types of wool available, because of finer fibers and smaller scales.  Merino has an excellent warmth-to-weight ratio compared to other wools, in part because the smaller fibers have microscopic cortices of dead air, trapping body heat similarly to the way a sleeping bag warms its occupant.
Transistorâtransistor logic (TTL) is a class of digital circuits built from bipolar junction transistors (BJT) and resistors.
Configuration of TTL Limits. A client can request a TTL value for an entry ranging between 1 and 31557600 (that is, from 1 second to 1 year). This attribute value range will be enforced by the rangeLower and rangeUpper attribute values in the attributeSchema definition for the entryTTL attribute.