Woman wearing black 2nu Halo sunglasses with deep-blue lenses in high mountain light for the Hiking and High Mountain Trekking sunglasses guide.

Your activity match

From sheltered trail to exposed alpine terrain, keep shadow detail and snow glare in balance.

Tree cover, wet rock, open ridges, snow reflection, and long route checks create a wider light range than either activity alone. Hexachroma supports terrain and map detail; TVO Pro is the focused polarized choice for hard exposed glare.

  • Hiking
  • High Mountain Trekking
Shop your strongest matches

The four issues that matter most across your two activities

We selected two high-priority issues from each activity. Open any card to see how 2nu addresses it.

01

Green and brown merge together

Leaves, soil, tree trunks and trail shadows sit within similar green-brown tones. A lens with a similar colour balance can flatten the terrain into a monotone scene.

How 2nu solves it

Green outside, balanced contrast through the lens

From the outside, the coating looks green; through the lens, the view leans violet-red. This helps separate greens, browns and shadow detail for a more balanced trail view. It applies to all green-coated TVO, TVO Pro and Hexachroma lens options, including green-coated Prescription and Prescription Hexachroma options.

02

Exposed snow and rock create hard glare

Above the treeline, direct sun and reflected light can remain intense for long sections with little natural shade.

How 2nu solves it

Start with ALPINE-rated glare control

Every 2nu sunglass lens provides UV400 protection. For sustained exposed glare, start with the deeper blue- or gold-mirror configurations that rank strongly on the ALPINE axis, then choose TVO Pro or Hexachroma by detail and screen needs.

03

From forest shade to an exposed ridge

One trail can move quickly between deep shade and strong open light. A lens that is too dark can hide roots and surface detail under tree cover.

How 2nu solves it

Balance shade and open light

Hiking is not about choosing the darkest lens. 2nu recommends balanced light control based on the amount of tree cover and exposed terrain, keeping open sections comfortable without losing too much detail in the shade.

04

Rock, snow and shadow detail changes quickly

Terrain can move from bright snow or pale rock into deep shadow, making surface texture and route cues harder to separate.

How 2nu solves it

Keep terrain detail in the decision

TVO Pro focuses on strong polarized glare control. Hexachroma is the flagship option when you also want higher outdoor detail and easier separation across exposed and shaded terrain.

Checking the strongest available matches.

How we choose

Balanced for Hiking + High Mountain Trekking

We compare brightness and changing light, colour and contrast, reflected glare and screen use, and frame performance across both activities—then rank the strongest overall balance.

Hiking

Clearer terrain contrast with comfort from sun to shade.

High Mountain Trekking

Stronger light control and coverage for exposed high-altitude conditions.

Choose by lens family

  • Fancy™ Sunglasses

    Fancy™ Sunglasses

    FFMBKGN-TP
    $199.00 AUD
    $199.00 AUD
    $279.00 AUD
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    $279.00 AUD
    $469.00 AUD
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    Lens
  • 2nu Halo Sunglasses product image

    Halo™ Sunglasses

    HFMBKGN-TP
    $199.00 AUD
    $199.00 AUD
    $199.00 AUD
    $199.00 AUD
    $199.00 AUD
    $199.00 AUD
    $279.00 AUD
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    $279.00 AUD
    $279.00 AUD
    $469.00 AUD
    $469.00 AUD
    $569.00 AUD
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  • Cogs™ Sunglasses

    Cogs™ Sunglasses

    CFMBKGN-TP
    $199.00 AUD
    $199.00 AUD
    $569.00 AUD
    $569.00 AUD
    $569.00 AUD
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    $569.00 AUD
    Lens
  • Ovo™ Sunglasses

    Ovo™ Sunglasses

    OFMBKGN-TP
    $199.00 AUD
    $199.00 AUD
    $199.00 AUD
    $199.00 AUD
    $569.00 AUD
    $569.00 AUD
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    Lens
  • Zealot™ Sunglasses - 2nu - Unleash Your Vision

    Zealot™ Sunglasses

    ZFMBKGD-HEX
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $279.00 AUD
    $569.00 AUD
    $569.00 AUD
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    Lens

Questions before you choose

Use these answers to compare the lens, frame and conditions that matter across your selected activities.

01Should I choose Hexachroma or TVO Pro for hiking?

Choose Hexachroma when flagship terrain detail, changing-light clarity and easier phone or GPS checks matter most. Choose TVO Pro when strong polarized glare control on exposed ridges, wet rock or water is the main priority.

02Why start with deeper blue- or gold-mirror configurations for ALPINE conditions?

Above the treeline, direct sun and reflected light can remain intense for long sections with little shade. Deeper blue- or gold-mirror configurations are the starting point for sustained exposed glare; compare the ALPINE radar and the exact lens option rather than choosing by colour alone.

03Why does 2nu recommend green-coated lenses for hiking?

Hiking scenery is dominated by foliage, soil, trunks and shadows within similar green-brown tones. A green-coated 2nu lens looks green from the outside but gives a violet-red-leaning view through the lens, helping separate greens, browns and shaded trail detail. This colour balance is available across green-coated TVO, TVO Pro, Hexachroma and green-coated prescription options.

04Can polarized lenses darken map, GPS or watch screens at altitude?

They can. Screen behaviour varies by display and viewing angle. Hexachroma helps reduce common polarized screen black-out while retaining glare control, but the result cannot be identical on every device. Check essential route tools before a long trek.