I ordered from the Rainbow Sandals Singapore (note if you google Rainbow Sandals that you need to find their Singapore page and not their global website).
Their collection is more limited than the global website (only 7 guys models available), and I got the Eco-Hemp Brown sandals. The price was SGD$68 which includes free shipping in Singapore. I checked out the global website, but they only ship to US and Canada. While the SGD$ price is higher than the prices on their global website, the fact shipping is included was a big positive!
The website is simple enough to use. You add your selection to the shopping cart. Upon check-out, you have to register (or if you're an existing customer then log-in). You can pay be credit card or paypal.
I got a follow up email that my selection wasn't in stock in Singapore but they would send me direct from Australia. It took a few extra days, but 9 days after ordering they arrived. Product is as advertised and looking forward to wearing them!