Product Description The Tilley LT5B Lightweight Breathable Nylon Hat (just 3oz) features the medium, semi-sloping brim size of the Tilley LTM5 and T5 Cotton duck models. Made with 93% nylon, 7% spandex with durable weather and stain repellent finish. It is tightly woven for high abrasion resistance, better shape retention, high breathability and superior comfort. A new moisture wicking sweatband made with TRANSPOR DRY LAYER offers superior moisture control technology. New wind cord made of nylon with reflective tape that illuminate in the dark. Matt black grommets and eyelets, double plated to ensure it will not chip-off. Brim Measurements:  Front 2 5/8",  Back 2 3/4",  Sides: 2 1/8" GUARANTEED FOR LIFE - and can be passed on in your will! INSURED AGAINST LOSS - insurance documentation provided on purchase EXCELLENT SUN PROTECTION REPELS RAIN TIES ON IN THE WIND - adjustable cord system MACHINE WASHABLE (WON`T SHRINK) FLOATS - closed cell foam in brim TRANSPOR DRY LAYER ANTI-SWEAT BAND CERTIFIED SUN PROTECTION UPF 50+ WIDE RANGE OF SIZES OWNER'S MANUAL PROVIDED SIZING:  Your Tilley Hat must be sized properly. To find your hat size, use a tape measure and draw it right around your head, just above the eyebrows. If you give us the measurement (inches or centimetres) , we can advise you of the right size. Contact us at the shop or on email, or click on the sizing chart. Tilley LT5B Lightweight Breathable Nylon Hat