Costa Mariana Trench 300


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Feel confident in a pair of handsome Costa Mariana Trench 300 eyeglasses for men. Monel metal is durable, hypoallergenic, and flexible for reliable comfort. The rectangular frames complement those with round or oval faces. The glasses’ lightweight frames cut down on weight with a semi-rimless design, offering a simple aesthetic that also provides excellent wearability. Adjustable Hydrolite nose pads allow for a customized fit while minimizing slippage. Nicely curved, coated temples create a clean look while maintaining a solid grip behind the ears.

Key features for Costa Mariana Trench 300:
– Handcrafted acetate and Monel® frames
– Comfortable and lightweight
– Sea-inspired colors in on-trend styles

Costa eyewear is made for those with an active lifestyle, bringing a healthy dose of fashion to the beach or trailhead. Polarized sunglasses, eyeglasses, and C-Mates bifocal readers by Costa will help you navigate in any direction your adventure leads. Created by fisherman for fisherman in the late 1980s, Costa continues to create quality sunglasses and eyeglasses with innovative technologies. These performance glasses were “born on the water,” and they’re made to last—each pair is a worthy investment.

View our Full Collection of Costa Prescription Eyeglasses

When you have completed shopping for your Costa prescription eyeglasses, please make sure you check our our fine collection of Costa Polarized sunglasses.


Additional information



Frame Color

Satin Black, Brushed Dark Gunmetal

Frame Size


Frame Features

Adjustable Nosepad, Semi-Rimless

Frame Materials


Frame Style

Rectangle, Square

Group Type/Gender

Men, Unisex

Product Type




Eye Size



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