In stock
Orders placed from October 14 onward will be delivered after Halloween.
Body heat shouldn’t just disappear into thin air. Instead, it should do something. That’s the whole idea behind this Hillside Translucent Heat-Reactive Jacket. A piece that actually shifts and reveals patterns as warmth builds up against the fabric.
Polyester makes up the outer shell, giving it that slightly translucent quality the heat-reactive effect needs to actually show up. Because the fabric reacts to warmth, patterns appear wherever your body heat concentrates most, then fade back once things cool down. Inside, a viscose lining keeps things smooth against a T-shirt or thin base layer.
Oskar Jacket is built with three pockets total, two up front and one tucked inside, so there’s room for a phone without needing a bag. Full-length sleeves end in open hem cuffs, and a hooded collar adds coverage on windier days. A zipper closure keeps the front secure without any fuss.
Black covers the entire jacket, letting the heat-reactive pattern stand out clearly against the dark base. This Hillside streetwear jacket works well layered over a hoodie or worn solo on cooler evenings, since the reactive effect shows up best against skin-adjacent warmth. Pair it with black joggers and chunky sneakers for a clean streetwear fit, or throw it over a plain tee for something more low-key.
Because the Hillside heat reactive jacket coating sits on the fabric surface, avoid high heat when washing or drying, since that can wear down the effect over time.
A: It’s a jacket that shifts in appearance based on your body heat, so patterns show up wherever warmth builds up against the fabric.
A: The fabric responds to temperature. Wherever your body heat builds up, a pattern shows through, then fades once that spot cools back down.
A: Stick to a cold wash; skip high heat in the dryer. That coating wears down quicker than normal fabric if you’re not careful with it.
Size Guide
Size Chart
Marcus Reed –
The translucent finish is the feature that immediately caught my attention. It looks really interesting when the light changes.
Trevor Hayes –
Unique jacket with a futuristic appearance. The material feels lightweight and comfortable enough for everyday layering.
Calvin Brooks –
I like the unusual design and overall fit. The material is thinner than I expected, but that’s part of the jacket’s appeal.
Jordan Miles –
This is definitely different from anything else in my closet. The heat-reactive effect gives it a really cool visual character.
Spencer Cole –
Comfortable fit and an interesting finish. It looks especially good outdoors where the translucent effect is easier to notice.
Nathan Cross –
The heat-reactive effect is the feature that immediately caught my attention. It looks really interesting when the temperature changes.
Ryan Mercer –
Very unusual jacket and definitely a conversation starter. The translucent material gives it a futuristic appearance.
Dylan Carter –
Cool concept and attractive finish. The material feels thinner than I expected, but that seems appropriate for the design.
Cole Harrison –
I love watching the color change when the jacket warms up. It gives an otherwise simple outer layer something really special.
Grant Lawson –
The jacket arrived in good condition and the translucent effect looks excellent. It feels lightweight and easy to wear.
Trevor Bishop –
This is easily one of the most interesting jackets I own. The reactive feature actually works and isn’t just a visual gimmick.
Garrett Nolan –
Unique and stylish piece. I wish it had a little more structure, but the unusual material makes it worth having.
Cameron Wells –
Lightweight, comfortable, and genuinely fun to wear. People kept asking about the changing appearance when I wore it outside.
Zachary Dean –
The futuristic look is exactly what attracted me. The jacket is easy to layer and doesn’t feel bulky.
Mitchell Rowe –
Very impressed with the heat-reactive finish. It gives the jacket a completely different look depending on the temperature.