Smith Shift Split Mag Sunglasses: ChromaPop Photochromic, Magnetic Lens Swap (£119.99)
The Smith Shift Split Mag is a split-frame pair of cycling sunglasses with photochromic ChromaPop lenses and a magnetic lens-change system, on sale at Tredz. We have not tested it. This page collects what Tredz lists and the current price.
Available now: Smith Optics Shift Split Mag Cycling Sunglasses — £119.99 at Tredz (listed RRP £260.00), correct at time of writing, 3 November 2026.
What the retailer lists
- Lenses: ChromaPop lenses, which Smith says enhance contrast and natural colour, with a light-sensitive photochromic tint that adapts to changing light.
- Lens change: the Smith MAG magnetic clip system allows quick, fingerprint-free swaps, and a bonus clear lens is included.
- Coatings: smudge- and moisture-resistant.
- Frame: high-impact TR90 nylon with AutoLock hinges that hold the frame open for one-handed on and off.
- Fit: medium to large fit with large coverage, slight wraparound, 5-base cylindrical lens curvature, and two-position adjustable Megol nose pads and temples.
- In the box: performance hard case and microfibre pouch.
Where it fits for triathletes
The points below are our reading of the listed features, not test results.
- Changeable light. A photochromic lens and a clear spare cover dawn starts and dull winter rides with one pair. We have not tested lens clarity or fog resistance.
- Fit. Tredz lists it as medium to large, so smaller faces should check the fit before buying.
- Price. At £119.99 it is £140.01 below the RRP.
Where to buy
Tredz lists the Smith Optics Shift Split Mag Cycling Sunglasses at £119.99 at time of writing, and the link below goes to the same product page.
Related guides
See also the best cycling sunglasses for triathlon, the best triathlon sunglasses and the Oakley Sutro review.
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