Lighterweight LT6 Hat `I was robbed of my autographed Tilley Hat at gunpoint... I must say that other than fearing for my life, I was extremely upset in losing my new hat....Please send me a new 7 5/8 ASAP.` Bob Chapman, Boise, Idaho * Guaranteed for life * Insured against loss * Excellent sun protection * Repels rain * Ties on in the wind * Machine washable (won`t shrink) And it weighs only about 4 ounces! Perhaps most wonderful of all.... (Please scroll to the very depths of this page to learn something that continues to amaze and delight Tilley Hat wearers!) Made from Tilley Nylamtium®, a durable, water-repellent nylon, the LT6 is a broad-brimmed lighterweight Hat and has a taller crown than all the other Tilleys. Even lighter than most ball caps, it weighs only about 4 ounces. Brim Measurements: Front and Back: 3 1/2" Sides: 2 1/2". The crown is 4 3/8" high. If you give us your heads measurement (inches or centimetres) on the Sizing Guide on the website, well give you the right size. Or refer to our Hat Sizing Chart for the easy reference to your Tilley Hat size.