Frosty Boy


Crawl out of bed and into Frosty Boy - then stumble out the door for a wake-me-up blast on the treadly. Silky Thermostat™ fleece back keeps you toasty while the WindFoil™ softshell front and arms knock the stuffing out of chilling breezes. The dinkum one-top-does-it-all for those who like to travel light and fast.

    • WindFoil™ softshell front, sleeves and shoulders block cold winds.
    • Raglan sleeves for enhanced fit.
    • Extra long front zip with integrated windflap and reflective trim.
    • 360° Hazard!™ reflectivity.
    • Zipped chest pocket for storing shades and tunes.
    • Rear security pocket and twin elasticised angle-pockets.
    • WhaleTail™ covers all your back all the time.
    • Secret tube repair patch.
    • S size in selected colours only.
  • WindFoil™ combines the insulative benefits of a polyester micro-fleece liner with a smooth, highly water resistant, softshell exterior. A totally windproof, yet highly breathable membrane is sandwiched between the inner and outer fabrics providing effective protection in cold, dry conditions.
    • Composition: 100% polyester with PU membrane.
    • 100% windproof.
    • Durable water-repellent (DWR) finish on face fabric.
    • Breathability: 4000gm per sq.m per 24hr.


    A non-windproof version of WindFoil™ - Thermostat™ is a lightweight, quick-drying laminated fleece with a water repellant finish. Constructed from a knitted polyester face fabric with brushed polyester fleece on the inside. Its hyper-soft finish makes it delicious to wear against your skin. Yum. Thermostat has an excellent warmth to weight ratio. For cycling, low bulk is important - both when you're wearing the garment and when it's stashed away in your back pack or pannier. The advantages of heavier fleeces are mainly for sedentary types. 
    • Composition: 100% polyester
    • Durable water-repellent (DWR) finish on face fabric.

    ▹ Composite Tops

    For short trips in stable weather conditions, a Ground Effect composite top lets you travel light and fast with just a single thermal layer. These designs combine a WindFoil™ front with a breathable Thermostat™ fleece or Heatwave™ Merino back. A long front zip for ventilation allows you to manage your body temperature through a wide range of conditions. Apparently you can have your cake and eat it too.

    ▹ WhaleTail™

    Ground Effect tops are cut with extra length in the back... and in the sleeves too. So when you stretch out in search of the perfect downhill position, neither your shirttail or sleeves will ride-up to expose your back or wrists to the elements.

    ▹ Weight

    Garment Weight: 340 gm
  •   Draft Dodger Hoodwink Frosty Boy Pushover
    Activity Urban & Tour Urban Mtb & Road Mtb & Road
    Windproofing Full Full Front only None
    Vents 2 at forearm - - -
    Pockets 2 hand pockets Single chest pocket 3 rear pockets plus single at chest Single hip pocket
    Hood No Yes No No
    Hazard! Reflectivity Yes No Yes Yes

    • 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 Ecover, Ecostore, Earthwise 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. 

    • Be sure not to wash with socks, fluffy towels or flannelette sheets. Lint clings to the fleece on the inside of your top making it age before its time.

Made by: Ground Effect in New Zealand

Customer Reviews

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  • Reviews (60)

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Jody G.

Frosty Boy

I just got an Open U.P. for exploring the the gravel roads and bush tracks around my home in the Adelaide Hills. When winter arrived I needed a riding top that would keep me warm on the clear frosty mornings and the cold cloudy days. It had to match the function and quality of the U.P.! After plenty of research I decided to get a Frosty Boy. I haven’t been disappointed. Its light and comfy, and highly functional. It keeps me toasty and the fleece back is ideal for stopping me from overheating as I warm up. Compared to many other brands GE gear is well priced. Looking forward to many more km’s in the Frosty Boy!

David B.

Great in a frosty Bathurst

Many of my cycling friends recommended the product. I haven't been disappointed. In sub-zero temperatures, my Frosty Boy has kept me warm, while allowing free arm and body movement. Delivery was prompt and easy to follow. If I had one criticism, it is that it needs a reflective strip across the back. I mostly ride on rural roads, sometimes with patches of fog, increased visibility would be great.

Nola S.

Frosty Boy

Gift to my son. Really impressed with the top. Very warm and cosy for night riding in Wanaka.

Chris B.

Frosty Boy

Thanks Ground Effect, Frosty Boy had liberated me from the house on cold days, nice to be warm while riding in the Christchurch winter. Top service too thanks.

Trail A.

Frosty Boy

First impressions are that it is very well made, very comfortable and I love the Agent Orange colour. Took it for its first ride 2 days ago on a 1 hour night ride through the local forest trails with temp around 6-7 degrees celcius. Normally I would have had to wear a standard short sleeved top with a wind proof jacket and would end up too hot and sweaty. This time I only had the Frosty boy and was more than comfortable just standing around prior to ride while others were layering up. During the ride it got quite warm but never uncomfortable and never clung to sweat on my body and the back fabric did a wonderful job of breathing. When I had finished I was expecting to have to peel off my top and change but it turned out I was not really sweaty at all and drove home in comfort in my new top. So far really impressed and seems to be well worth the money. Look forward to testing on rides with lower temperatures. Another quality item from GE - thanks guys.