Timberland PRO has selected Interpublic Group’s The Martin Agency to develop strategy and ads for its outdoor industrial work boot: the Hyperion. The selection came after a two-month review, the client confirmed. The incumbent on the account was Mullen, also part of Interpublic. The appointment is effective immediately; the first creative work is slated for fall 2013. Billings for the brand were not disclosed. It’s the second time that Martin has been hired by Timberland, as it was previously the brand’s agency of record from 1997 to 2001.