Titleist TSi 1 Fairway Wood The Titleist TSi 1 Golf Driver by Titleist is built for players that have moderate swing speeds and want more distance. The TSi 1 Fairway features an ultra-lightweight configuration that is 50g lighter than a standard fairway wood, creating more control and easy launch. ULTRA-LIGHTWEIGHT The TSi1 metals have been manufactured and weighted precisely to deliver maximum launch at distance from moderate swing speeds. PERFORMANCE-TUNED ADJUSTABILITY Titleist has engineered adjustability features to offer maximum benefits for every type of player. Get the most out of every swing. ACTIVE RECOIL CHANNEL Featuring a lighter, more refined ARC 4.0. This perfectly aligns CG placement, delivering faster ball speeds and greater face flexibility, especially low on the face.