Slim Jims

112 reviews
Size Chart
Colour
Jet Black
Kakariki
Size

Half baggy, half lycra, half café, full performance. Slim Jims' relaxed fit sorts out the Style Police while refuelling on tour, or slaking your thirst after a session at the bike park. While Hi-Impact Stretch™ delivers maximum performance without excess fabric to slow your flow.
+Features
  • Easy-Rider™ stretch hip panels with Broadband™ rear waist.
  • Smooth fitted waist with zipped fly.
  • Gusseted crutch for pedalling freedom.
  • Combine with Innuendos, UnderdogsStowaways or Flatliners mesh liner for increased performance.
  • Open hand pockets plus zipped thigh security pocket.
  • Tough Hi-Impact™ Stretch takes the knocks.
  • Added strength with critical bartacking.
  • Designed & made by us in Aotearoa | New Zealand.
+Tech

  Weight: 220 gm

+Hi-Impact™ Stretch
Hard wearing and quick drying nylon fabric. Super stretchy for a closer, performance fit. Tight double weave 'looped' construction combines bulletproof durability with next to skin comfort.
  • Composition: 89% nylon; 11% lycra.

+Easy-Rider™
Stretch hip panels and Trim Tabs™ keep Ground Effect baggies hitched up. Intelligent design reduces surplus fabric for a smoother and therefore more comfortable interface between bum and saddle. There's also less risk of getting hooked up on technical trails.

+Luxury Liner
These baggies are supremely versatile. Add the InnuendosUnderdogs or Stowaways lycra mesh liner to deliver no-nonsense performance in the saddle. Whip ‘em out for washing or when moving into après ride mode. Winterise by using a pair of Geronimos or three-quarter length shorts as the liner.

+More than Kiwi Made
Ground Effect clothing is crafted right here in Aotearoa | 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.

+Compare
  Hydroslides Juggernauts Snipes
Fabric

HydroFoil
Hi-Impact Stretch

Hi-Impact Stretch Hi-Impact Stretch
Liner Separate Separate Separate
Trim Tabs™ Yes Yes Yes
Leg Vents No Yes Yes
Leg Length Above-Knee Mid-Knee Above Knee
Fit
Sizes S - XL S - XXL S - XL
  Double Happys Slim Jims Supertankers
Fabric Hi-Impact Stretch Hi-Impact Stretch Hi-Impact Plus
Liner Integrated Separate Separate
Trim Tabs™ Yes No No
Leg Vents No No No
Leg Length Mid-Knee Above Knee Mid-Knee
Fit
Sizes S - XXL S - XL S - XL
+FAQ

+Baggy vs Lycra
A stretch short will always deliver more performance than a baggy number as there's no surplus fabric bunched up between your bum and the saddle. However, baggies are the default choice of battle-hardened cyclists off road, on tour and around the streets. They combine a loose but not super-baggy fit with an optional mesh liner and moulded pad... providing the performance benefits of conventional stretch shorts with minimal compromise.

+How should the waist fit?
These baggies feature a stretch-fit waist that delivers a snug, performance fit. Pull them over your hips, and there should be a 3-5 cm gap before you close the dome. The waist is then under tension so your pants stay put when hitting the trails or tarmac.

+Are they water-resistant?
The Hi-Impact™ Stretch fabric has a water resistant treatment. While the pants are not waterproof, they do provide some short term resistant to drizzle and light rain. They are windproof, dry faster than lightening if you do happen to get caught out and are extremely hard wearing. For increased rain protection checkout the splashproof Hydroslides with their HydroFoil™ Plus rear panel.

+Washing
  • 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 EcostoreEarthwise 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. 
+ Shipping
  • Items are generally packed and sent the same day your order is received.
  • Costs $7 by overnight courier within New Zealand.
  • NZ$7 by tracked airmail to Australia.
  • Around NZ$15-25 by tracked airmail to destinations elsewhere in the world - calculated in our shipping cart as you check out. 
    • More shipping and tax details in our FAQ.
    Customer Reviews
    4.9 Based on 112 reviews
    5 ★
    90% 
    101
    4 ★
    6% 
    7
    3 ★
    4% 
    4
    2 ★
    0% 
    0
    1 ★
    0% 
    0
    Write a Review

    Thanks For Your Review

    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.

    Filter Reviews:
      NH
      20/04/2022
      Neill H.
      Australia

      Slim Jim Shorts

      Great cycling and general leisure shorts. Always the go to for comfort and look. I have 3 pairs now.

      JR
      11/04/2022
      Jacob R.
      New Zealand New Zealand

      Slim Jims

      I just bought a pair of Slim Jims and they are my first pair of non lycra cycling shorts. I love them, not too baggy which suits me down to the ground. They are also great for riding my Penny farthing as they don't flap around and into the spokes:-)

      KL
      31/03/2022
      Kim L.
      New Zealand New Zealand

      Slim Jims

      Great shorts. Super comfortable. I deliberately bought a size that I thought would be on the small size rather than too big. The fit is snug, no issue with them slipping and the stretchy fabric allows a good range of movement.

      JB
      21/03/2022
      Jono B.
      New Zealand New Zealand

      Not great out of the box

      The waist band has too much stretch in it (size M for 32", fits well). This results in the pants sliding down a bit while riding. The one zipped pocket in just a little too low to hold a phone without been annoying while riding. I sewed two short 25mm wide straps to the sides to limit the amount of stretch. Also sewed a line a line 50mm above the bottom of the zipped pocket to limit its depth. With these mods, the shorts are now fantastic.

      A Ground Effect Customer
      CH
      01/03/2022
      Caspar H.
      New Zealand New Zealand

      Fantastic, As Ever

      I'm onto my third pair of these pants (the first two are doing fine btw) and I think this model is your best yet. Super comfortable, very flexible and lightweight. They are not as tough as the super tankers, but in reality, you don't need shorts that tough. I absolutely love my new shorts. Any chance of getting a navy or dark green colour option?