BEX Knox Chestnut
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Knox brings a vintage-inspired browline design to the BEX lineup — a bold upper frame with a lighter, minimal lower rim, built for everyday, casual wear with a retro edge. A lightweight RELIALITE® and metal frame construction keeps it comfortable for all-day use.
NYPO® polarized lenses deliver full UV protection, and the antimicrobial frame treatment resists bacteria for long-lasting freshness. Replaceable nose pads and rubber temple tips give you a secure, personalized fit that holds up over time. A 6-base curvature keeps the frame close and comfortable without the sport-focused wraparound shape of BEX's performance models.
Measurements: temple length 145mm, nose bridge width 19mm, lens width 52mm, frame width [FRAME_WIDTH]mm.
What's included: sunglasses, an EVA molded case, microfiber sleeve, extra screws, extra nose pads, and an eyeglass screwdriver.
As an authorized BEX retailer, every pair here is 100% authentic, backed by free shipping on orders $40+ and a 30-day return policy.
Knox Browline vs. Full-Frame Styles
| Features | BEX Knox (Browline) | Full-frame / aviator styles |
|---|---|---|
| Look | Vintage-inspired, bold upper frame, minimal lower rim | Even frame weight all around, more classic/sporty look |
| Weight | Lightweight RELIALITE® + metal construction | Varies by material |
| Best for | Everyday, casual wear with a retro edge | Outdoor/sport-focused use (see Legolas OTG, Brackley X) |
| Lens protection | Polarized NYPO® lenses, full UV | Varies by model |
FAQ
What style is the Knox frame?
A vintage-inspired browline design — a bold upper frame with a lighter, minimal lower rim, built on a lightweight RELIALITE® and metal frame.
Are the lenses polarized?
Yes, NYPO® polarized lenses with full UV protection are standard on this model.
Does it have replaceable nose pads?
Yes — the frame uses replaceable nose pads for a secure, personalized fit over time.
What's included in the box?
Sunglasses, EVA molded case, microfiber sleeve, extra screws, extra nose pads, and an eyeglass screwdriver.
Is this a good everyday pair, or more for sports?
Knox is built for everyday, casual wear with a retro look — for sport-focused use, see Legolas OTG or Brackley X in the BEX collection.
Last updated: October 2026
Fit Guide
Frame width is the total distance across the front of the sunglasses, and it’s one of the best indicators of how the frames will feel on your face. You’ll find the frame width listed under "Product details " on product page.
Use this guide to choose your best fit:
- Narrow fit: 139 mm or less
- Regular fit: 140 mm - 146 mm
- Wide fit: 147 mm or more
Choosing a width in your range helps ensure your sunglasses feel balanced and comfortable, not too tight, not too loose.
