Dunlop SX 300 (2025) - TealDunlop SX 300 (2025) Teal Featuring a new mold and enhanced dampening, the 2025 Dunlop SX 300 is a gift to those who want easy access to power and spin. In addition to being light enough for a wide range of intermediates, the SX 300 will also tempt the more advanced ball striker who wants raw speed or a platform for customization. Like the outgoing model, this update combines spin friendly targeting from the baseline with quick handling at the net.