with an opening in the center of the robe like that of a garment, with a collar around the opening so that it would not tear.
In this account of the making of the priests' garments, according to the instructions given (ch. 28), we may observe, 1. That the priests' garments are called here clothes of service, Exo 39:1. Note, Those that wear robes of honour must look upon them as clothes of service; for from those upon whom honour is put service is expected.
Commenting on Exodus 39:1-31
And [there was] an hole in the midst of the robe, as the hole of an habergeon, [with] a band round about the hole, that it should not rend. (f) Where he could put his head through.
As the hole of a habergeon - The habergeon or hauberk was a small coat of mail, something in form of a half shirt, made of small iron rings curiously united together. It covered the neck and breast, was very light, and resisted the stroke of a sword. Sometimes it went over the whole head as well as over the breast.