Flatliners deliver less bulk and more breathability under your baggies than their padded siblings. Perfect for when your bum is not getting a pounding during quick laps of the bike park or while shuttling your local trails.

    • Breathable lycra mesh liner.
    • Additional cotton lycra front panel keeps your landing gear dry.
    • Flat seams for enhanced comfort.
    • Wide elastic waistband.
    • HighRise™ rear has you covered.
    • Bandolier textured-lycra cuffs glue these shorts to your thighs.
    • Made by us in New Zealand.
  • ▹ Lycra Mesh

    4-way stretch nylon with mesh eyelets for accelerated cooling. A lightweight knit blended with 12% lycra to deliver body-hugging performance.
    • Composition: 88% nylon; 12% lycra.

    ▹ HighRise™

    A stretch lumbar panel and HighRise™ rear overlap with your cycle top to keep you covered. No bare skin or lewd exposure.

    ▹ 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.

    ▹ Weight

    Garment Weight: 130 gm
  •   Stowaways Innuendos Underdogs Flatliners
    Pad None
    Style Bib Shorts Shorts Shorts

  • ▹ Should I wear underwear with these shorts?

    Hell no. You want to have as smooth an interface as possible between your bum and the saddle. The seams on your underwear will inevitably be in the wrong place - causing rubbing and saddle sores. Also underwear is generally cotton - nice for everyday use but damp skin below is more susceptible to chaffing.

    • 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. 

    • With shorts in particular, cold-water detergents and those with bleach or fabric softner can cause 'nappy-rash' so if you're experiencing issues in that department try a warm 40ºC machine wash and a change of cleaning brew. 
    • A washing machine rinses more thoroughly and is preferable if you have the choice.
    • UV rays accelerate the decay of lycra. Our fabric is knitted so the lycra component lies on the inside of the fabric - shielding it from the sun when you're out riding. Consequently you should avoid drying these shorts inside-out. It's not a bad idea to do so occasionally as the sun does help keep the pad hygienic - although it is treated with an anti-bacterial finish anyway. But drying in this manner is a trade-off with the damage done to the Lycra.
    • It's common practice to not wear underwear with your riding shorts so you need to wash your shorts daily. And it's recommended to give your shorts an initial wash when they're new - the eXo™ pad in particular becomes less stiff after the first wash.

Made by: Ground Effect in New Zealand

Customer Reviews

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  • Reviews (4)

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We value your feedback. If you're stoked with your Ground Effect kit then you might like to share it (the review not the gear) with your mates. Thanks again.
STU &.
New Zealand


Have just riden the Dunn Mountain , Copper Mine trail over 45 km’s and the Flatliners performed real well , this is my first ride wearing them , i certainly recommend this product ,

Royston S.

Flatliner review by Roy Fraser, Bundaberg Qld Australia.

I recently bought a pair of Flatliners to replace my 7 years 'old 'inners which are worn daily. Wow! what a surprise. They fitted comfortably and still were so after 125km of ride. The new design and material in the insert did not chafe me and washed easily in cold water. Hopefully these will last me for another 10 years!!!

Kent W.
New Zealand


These are great fitting shorts, but the main reason I bought them was to find a pair of shorts that didn't chafe, as I have tried a wide range of other shorts (padded and not) and all of them chafed. These shorts don't, hooray!, due to the flat seams and good fit.


Just the ticket for big bike days!

The comfort of the chamois-less flatliners was a pleasant surprise. Despite initial skepticism they proved to be supremely comfortable on a big day of shuttling Nelson trails last Saturday. With dropper post keeping my seat well out of the way, my *** time was limited and the pared down liner was definitely a step up in breeziness compared with a chamois equipped liner. A day of sifting/smack talking and I forgot about them, which is always a good sign!