And with new deliveries arriving of the popular retro range and replica shirts signed by individual Charlton players just £25, there has never been a better time to browse.
What's more, every supporter who spends more than £10 online will automatically receive a free trainingwear scarf worth £11.99.
Charlton retail manager Michael Rea said: "We regularly have special offers in the Valley Superstore, and we thought it was time to extend that to what we do online as well. There is often a bargain of the week, which can be found on the front page of www.cafc.co.uk, but now we have a new online Superstore, we're trying to make as much use of it as possible."
He added: "By offering free postage on orders over £40, it makes even easier and more convenient for fans to order online, and if supporters spend more than £10, they will also receive a free scarf.
"However, our overseas fans should note that, unfortunately, the offer of free postage doesn't apply to orders from abroad."
Among the recently launched special offers are the replica shirts for just £25, which are available in sizes ranging from extra large to 3XL, and are signed by members of Phil Parkinson's first-team squad.
Indeed, fans can now order individual shirts online - supporters must specify which player's signature they want by completing the special instructions form upon checking out.
Said Rea: "The shirts make wonderful presents, and with no one shirt the same, they are also unique Charlton mementos."