Proof Ontario Wood Sunglasses | Black Maple/Polarized 49/23MM The advanced unit also has

The advanced unit also has a new Sync button and a new mode in strokes/strides per minute for increased functionality

Cuff & Sleeves Configuration

[Details] Ultra-durable weather-resistant

Ultra versatile - wearable as a sling strap

Highlighted by its diamond-pattern case side

Proof Ontario Wood Sunglasses | Black Maple/Polarized 49/23MM The advanced unit also hasThe Proof Ontario Sunglasses are a modern interpretation of the classic Wayfarer style, taking on an environmentally friendly twist. As part of the Proof Wood Series, these frames are handmade with an eco friendly constructed frame with solid, hand polished FSC certified wood creating lightweight yet durable eyewear. [Details] Handmade from sustainably sourced wood CR39 lens 100 UVA UVB protection Stainless steel spring loaded hinges Water resistant