Invincible Safety Eyewear 301M offers uncompromising workplace sight protection together with elegant corporate design. They are designed for technical professionals, managers, and site inspectors since they blend durability with personality. It works well in boardrooms and on plant floors.
The 301M comes in two finishes: Black and enhanced Black/Gold with a multi-tone look. The frame is made of high-tensile metal that holds its shape well. Stays strong. It doesn’t feel heavy or bulky on the face. Flexible, adjustable nose pads let users get the fit.
This helps avoid slipping and pressure points during the day. The frames are size L. They have a 54 mm lens width and a 17 mm bridge. The hinges are strong and regular. This gives balanced coverage and reliable support every day. The metal frame construction fully accommodates custom optical prescription eyewear, providing great visual clarity in all work conditions.
Key Features
- Brand: Zyloware
- Collection: Invincible
- Model: Invincible Safety Eyewear 301M
- Color: Black, Black/Gold
- Style: Unisex
- Frame Material: Metal
- Frame Shape: Oval
- Frame Style: Full Rim
- Frame Size: Large
- Eye Size: 54 mm
- Lens Width: 54 mm
- Bridge Width: 17 mm
- Nose Pad: Adjustable
- Hinge: Regular
- Type: Prescription Eyeglasses
Invincible Safety Eyewear 301M is a practical choice for users seeking a large prescription frame with a metal construction, adjustable nose pads, and a professional oval design.
Frame Information
- Manufacturer Zyloware, Invincible
- Gender Unisex
- Frame Material Metal
- Frame Shape Oval
- Rim Type Full Rim
- Eye Size 54
- Frame Size L
- Nose Pad Adjustable
- Hinge Type Regular Hinge
- Type Prescription Eyeglasses
FRAME MEASUREMENTS
To ensure your frames fit perfectly, you first have to determine which size frames are best for you. The best place to start is with the measurements on a pair you already own. You know those little numbers on the inside of its temple? That's what you're looking for. The frame measurements appear in the following order: lens width, bridge width, and temple length.
Frame Width

To find frame width, measure the front of the frame from screw to screw
Temple Length

Temple length is the measurement in millimeters of the ‘arms' of the frame. This measurement does not vary as much as the others, with 135mm, 140mm, 145mm, and 150mm being the most common options.
Lens Height and Width

Lens height is the distance from the top of a lens to the bottom. Lens Width is the distance from the left side of a lens to the right side.
Rate this frame
Lena Villegas Verified
Classic Style
The black and gold finish looks professional and stylish. Great for both work and everyday wear.
Douglas J. Jones Verified
Comfortable Fit
These metal frames are lightweight and fit all day comfortably without slipping or causing pressure.