The new cap features a Realtree camo design and the words “Harris Walz” in garishly bright orange. The hat, $40, went viral and sold out nearly immediately.

The Harris-Walz camo hat is giving MAGA merch a run for its money, with its campaign store pulling in nearly $1 million on camo hat orders in one day.

The campaign’s initial run of 3,000 hats sold out within 30 minutes, according to the campaign. It’s sold nearly $1 million in the Harris-Walz camo hat since launch yesterday, the campaign adds.

Done in Realtree camo—a print that mimics actual trees, rather than the more abstract camo print of yore— the hat features the Harris-Walz logo in bright orange letters.