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Stone Island has solidified its spot as our favorite tech clothing company.

The Italian brand is coming up on their third decade of business, so if you are just getting familiar, have no worries: Stone Island is constantly coming out with new and amazing reasons to fall in love. 

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For their 30th anniversary, Stone Island invented a knit material that not only glows in the dark, but is also reflective. In regular light it simply looks like a grey zip-front sweater, but turn the lights out and watch the magic happen.

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Imagine how useful a material like this could be for cyclists or for construction workers who are constantly working through the night. Check out a visual demonstration of Stone Island’s Reflective Glow-In-The-Dark Knit for its 30th Anniversary in the video above.