The teach organization lets any luggage not exceeding five kg / 11 lb or a small carry-on. Significant baggage can block the exits so it is usually recommended to depart at your Cusco resort o sacred Valley Resort and pick them up soon after Machu Picchu. (which stops in Ollantaytambo https://machu-picchu-hiking-tours61482.alltdesign.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-machu-picchu-tours-46551604