68 reviews
Grey Marle

Wear under your helmet to stop hard-earned sweat getting in your eyes. Crafted from stretchy cotton lycra.

  • One size only with infinite adjustment using a knot of your choice.
  • Designed & made by us in Aotearoa | New Zealand.

  Weight: 40 gm

+More than Kiwi Made
Ground Effect clothing is crafted right here in New Zealand. Has been ever since we started back in 1994. Manufacturing locally works for us. We operate a quick-response system - holding minimal stock of any one item, but churning out a few more quick-smart when the pile gets low. The upshot is that we are seldom caught with our shelves empty, so orders get despatched the same day you place them.


  • All Ground Effect clothing enjoys a warm 40ºC machine wash. Try to avoid cold-water detergents and those with bleach, 'oxygen whitener' or fabric softener.
    • The cold-water varieties have little enzymes that are super-charged to brave the cold but can damage technical fabrics and cause skin irritation. 
    • Bleach rots natural fibres like merino, strips the dye, attacks laminates of waterproof fabrics and can also cause skin irritation.
    • Sodium Percarbonate (the main ingredient in oxygen whitener) can make colours run.
    • Fabric softener and stuff containing it like wool wash destroys the water repellent finish on waterproof and water resistant fabrics, and can cause colours to run. 
  • As a rule of thumb, a product that is easy on the planet is also easy on your body. Select a mild plant-based soap like EcoverEcostoreEarthwise or Aware.
  • Hand washing is sometimes the only option on tour, but a washing machine rinses more thoroughly and is preferable if you have the choice.
  • Most Ground Effect gear dries super-fast so hanging on the line or drooping over the bedpost is generally the best option. High heat can damage some fabrics so if you do take your threads for a spin, set the device on 'medium' or 'warm' rather than hot. A lap in the dryer is recommended for your rain jacket, after it has dried on the line, as it helps recharge its water repellent finish. 

Customer Reviews
4.8 Based on 68 reviews
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Alistair A.
New Zealand New Zealand

Bloody good product. I've bought 6 of them now (they seem destined for the same place in the universe as your "other sock"), and will probably buy more. BUT they don't quite qualify for 5 stars... The latest grey and previous blue ones are a bit on the short side. And I don't even have a particularly big head. The older black ones were just right for length. I get why you put a GE label on them, but the nature (thickness) and position of it really messes with my helmet, so the first thing I do is take it off. I'd much rather help you promote your wonderful brand by proudly wearing it. Maybe a re-think is in order...

A Ground Effect Customer
Chris H.
New Zealand New Zealand
it really works!

Was a bit dubious how well the bandanna would work, but sweat and sunscreen don’t drip into my eyes now, the top of my head is cool and it fits well under my helmet. Needed to double knot it but no issues - I’m sold. Does what I need it to without interfering with my ride at all.

Paul W.
Australia Australia
Stop the sweat

I've always had to use something to stop the sweat running into my eyes, so I thought I would give these a go. Works perfectly, good feel on the skin and doesn't loosen.

Daniel C.
New Zealand New Zealand
The Bandanna

Five stars Recommend to all who suffer from the very sweaty forehead, I have been using these for years and will continue to do so

Chris R.
New Zealand New Zealand

It's stretchy so you only need to put one twist in it at the back and it stays put. Keeps my airpods from falling out and sweat from getting in my eyes.