Nouns ending in -er are usually masculine.
Is porter masculine or feminine?
leporter
The rule behind it
94.6% of -er nouns are masculine
In context
Laver avant de porter pour la première fois.
Wash before first wearing.
Je ne peux pas porter tous ces bagages.
I can't carry all that baggage.
Elle fut assez aimable pour porter mes bagages.
She was kind enough to carry my baggage for me.