To honor its opening at Tokyo's Nihombashi Takashimaya department store, Japanese company thermo mug has unveiled a special collaboration with apparel label mastermind. The partnership delivers two thermal tumblers and two bottles in a sleek black design, with the choice of either silver or gold accents.

The 300ml lacquer-framed cups feature the word "prosperity" in kanji on the reverse. Their medium size and double insulation make them good for life on the go, and despite the mastermind skull and crossbones on the front, you'll feel good about helping to save the world by getting your cup of joe in a reusable recepticle. The umbrella bottle, meanwhile, is a durable vacuum thermal container ideal for any outdoor excursion.

The tumblers fetch for approximately $89, while the thermal bottles retail for around $80. All four items will be raffled online from September 18 to September 20. Winners will be notified via email on September 21.

Elsewhere, you can now cop mastermind's collaborative side-zip boots with Timberland.

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