In checked luggage, Interjet allows one checked bag per passenger on domestic flights and two checked bags for international flights. Bags may weigh up to 25 kg (55 pounds) each. There is a $5 USD fee per kilogram for excess weight, but Interjet may refuse to carry any bag that weighs in excess of 30 kg (60 pounds).
For more details visit : http://www.interjet.com/Baggage/Baggage-Information
Interjet Airlines Hand|Cabin Baggage