The Heat Wave Visual Marylin Sunglasses: Ultra Black are midsize fashion sunglasses built for bright outdoor conditions and a bold everyday look. This is a sunglasses designed for reducing harsh light in very bright environments. Model Number: E_MAR_BLACK_01U. If standard dark lenses still feel too light on snow, sand, white rooftops, or full-sun pool days, this version is the one aimed at that problem.

The big story here is the Ultra Black lens tint. Heat Wave states the visible light transmission is 6%, compared to an industry standard around 11%. In plain terms, that means these are darker than typical sunglasses, which helps when glare and reflected light are the real issue. The tradeoff is important and clearly stated by the brand: they should not be used while operating a vehicle.

Build-wise, the Marylin uses flat, flush-mount lenses set inside a thick frame, giving the sunglasses a clean, statement look without going over the top. The finish is listed as high gloss black, and the polished gold details add contrast without changing the all-black feel of the frame and lens package. The shape lands in that sweet spot for buyers who want something stronger than a basic lifestyle frame but still easy to wear daily.

Fit is one of the more useful details on this model. The arms have a wire core embedded within the polycarbonate frame, so you can twist, bend, and fine-tune them for a more secure fit. That is a practical feature, not just a style note. If you've worn frames that pinch behind the ears or slide around after a few hours outside, adjustable temples can make a real difference.

On lens construction, Heat Wave specifies a 1.9 mm thick polycarbonate lens that is injection molded for clarity and controlled color and light transmission. UV protection is straightforward and important: the lenses are UV400 and block 100% UVA / UVB. The product description also states the lenses meet Z80.3 standards, which gives you a more useful quality benchmark than vague claims about premium optics.

As for who should buy them, these are a smart pick for anyone spending real time in intense sunlight and wanting a darker lens than average. They make the most sense for beach use, snow exposure, poolside wear, bright urban summer days, and similar high-glare settings. If you want one pair for driving and all-purpose low-light versatility, this is probably not the right tint. If you specifically want very dark sunglasses for punishing brightness, the Marylin Ultra Black does exactly that.

Heat Wave Visual Marylin Sunglasses That Go Dark on Purpose

If you want seriously dark lenses for bright, reflective environments, this pair makes a lot more sense than a generic black sunglass that still leaves you squinting.

• Who it's for: Buyers who spend time in intense sun and want a midsize fashion frame with a much darker-than-average lens.
• Why it stands out: The 6% VLT tint, adjustable wire-core arms, 1.9 mm polycarbonate lenses, and UV400 protection give it a real use case beyond just looks.
• Worth knowing: The brand is very clear that this lens should not be used while operating a vehicle, so think of it as a bright-condition specialist.

• How dark are these lenses? Heat Wave lists the Ultra Black lens at 6% visible light transmission, which is darker than the 11% industry standard referenced by the brand.
• Do these sunglasses block UV light? Yes. The lenses are UV400 and block 100% of UVA and UVB.
• Can the fit be adjusted? Yes. The arms include a wire core inside the polycarbonate frame so they can be bent and shaped for a better fit.
• Are these okay for driving? No. The brand states these lenses legally should not be used when operating a vehicle.