1942  The cold pierced through his thin sillapak so that all night he jumped about to prevent the fatal drowsiness which precedes death from creeping upon him.
1952  Sometimes the hunter dons a white "seelapak" to make himself even less conspicuous. . . .
1959  . . . a tightly-woven poplin of cotton and nylon takes the place of the wind-blocking fabric Eskimos first used for the outer garment known as a sealapack.