The Christine Collection is perfect for going away as the sun hats made of very tight-woven materials. This protect against harmful radiation from the sun with an SPF of 50+. This is your guarantee against getting a sunburn or a sunrash. 

http://www.birminghamtrichologycentre.co.uk/christine-collection/christine-collection-hats-caps/dimples-christine-cap-brown-style%2016-06