Anyone needing to buy a CamelBak big bite valve can't go wrong buying the thermal control kit from CRC who are selling them for £4.99, £1 cheaper than you can buy the valve by itself from wiggle.

Nice one. Camelbak are a fuggin' ripoff anyway.

if you want a camelbak...go on ebay and buy one in from the usa.

they are about 1/3 of the retail price over here....and thats with postage.