switch {
			case oi.DeleteMarker, oi.TransitionedObject.FreeVersion:
				continue
			}
			tier := oi.StorageClass
			if tier == "" {
				tier = storageclass.STANDARD // no SC means "STANDARD"
			}
			if oi.TransitionedObject.Status == lifecycle.TransitionComplete {
				tier = oi.TransitionedObject.Tier
			}
			if sizeS.tiers != nil {
				if st, ok := sizeS.tiers[tier]; ok {