+ UVB
lenses
resistant
included
SIERRA - Pre-Order
Delivery in 2–3 business days · Next-Day available
- Polarised lenses as standard
- 100% UVA + UVB protection
- Impact resistant, drop tested
- Lifetime guarantee
Details & fit
CIRCULR PERFORMANCE
Engineered for speed. Refined for every ride.
Designed for athletes who demand more, this performance frame combines cutting-edge functionality with a clean, premium aesthetic. The oversized shield lens delivers an uninterrupted panoramic field of vision, helping you stay focused whether you’re chasing a personal best, attacking a climb or pushing through your daily training.
Its lightweight construction and aerodynamic profile provide a secure, barely-there fit, while the minimalist design transitions effortlessly beyond sport. Every detail has been considered to maximise comfort, confidence and performance—without compromising on style.
Features
- Ultra-lightweight performance frame
- High-definition polarised shield lens
- 100% UVA & UVB protection
- Wide panoramic field of vision
- Aerodynamic wraparound design
- Secure, non-slip fit
- Impact-resistant construction
- Ideal for cycling, running, golf, training and everyday performance
- Premium CIRCULR finish
- Lifetime Guarantee
The CIRCULR Standard
- Lens: Polarised TAC, Category 3
- UV protection: 100% UVA + UVB, verified
- Impact test: Passed · drop tested
- Hinge cycles tested: 10,000+
- Fit class: Regular
Shipping & returns
Fast, duty-paid shipping worldwide. 30-day risk-free returns. Lifetime guarantee: any manufacturing fault, for life. Email our CX team and we replace your shades free of charge.
How does 2 for £50 work?
As worn by Vikk
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