I couldn't find the Warp Corp. bag, but Eddie Bauer has something vaguely similar. It's a fanny pack that opens out into either a backpack or a tote bag.

Hopefully the below link will work, but if not, just go to EddieBauer.com and enter i40 792 0154 in the item number field.

http://www.eddiebauer.com/home.jsp#ppl=%7Btype%3A%22transition%22%2CensembleId%3A%22%22%2CformatStr%3A%22eobproduct%22%2CpassedIdObj%3A%7B%22flds%22%3A%22%22%2C%22itemNbr%22%3A%220154%22%2C%22pageType%22%3A%22MATCHMATCH%22%2C%22productId%22%3A%225001883%22%2C%22result%22%3A%22true%22%2C%22effortcode%22%3A%22792%22%2C%22source%22%3A%22Previous%20Page%22%2C%22pricetypecode%22%3A%22R%22%2C%22firsteffort%22%3A%22792%22%2C%22department%22%3A%22i40%22%7D%2CcategoryId%3A%22null%22%2CpathInfo%3A%22undefined%22%2CcolorId%3A%22undefined%22%2CcatPath%3A%22undefined%22%2Ccs%3A%22undefined%22%7D
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Adventures In Stoving