What is best applicator for using Australian Timber Oil - Honey Teak? Was told to use old t-shirt but uncomfortable with that.

Apply with a natural-bristle brush or professional spray equipment. When spraying, always backbrush immediately. To ensure desired appearance and proper drying time, always finish a small test area before proceeding. Do not overapply. Shake and stir thoroughly before and during use. If project requires more than 1 container, blend all containers together to ensure uniformity. Apply to small sections at a time (1–3 boards); start at one edge and follow through to the end of the boards to avoid lap marks. Apply 1 coat only.