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Slim Jims

176 reviews
Colour
Jet Black
Ink
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 nylon fabric takes the knocks.
  • Added strength with critical bartacking.
  • Weight: 220 gm.
  • Designed & made by us in Aotearoa | New Zealand.
+Tech

+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
  Juggernauts Snipes Double Happys
Fabric

Hi-Impact Stretch

Hi-Impact Stretch Hi-Impact Stretch
Liner Separate Separate Integrated
Trim Tabs™ Yes Yes Yes
Leg Vents Yes Yes No
Leg Length Mid-Knee Above Knee Above Knee
Fit
Sizes S - XL S - XL S - XXL
  Slim Jims Supertankers
Fabric Hi-Impact Stretch Hi-Impact Plus
Liner Separate Separate
Trim Tabs™ No No
Leg Vents No No
Leg Length Above-Knee Mid-Knee
Fit
Sizes S - XXL S - XXL
+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™ fabrics have 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.
    • As a rule of thumb, a laundry product that is easy on the planet is also easy on your body. Select a mild plant-based soap like  Ecostore,Earthwise orAware.
    • Hand washing is sometimes the only option on tour, but a washing machine rinses more thoroughly and is preferable if you have the choice.
    • 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 wool wash destroy the water repellent finish on waterproof fabrics, and can also cause colours to run.
    • Most Ground Effect gear dries super-fast, so hanging on the line or draped over the bedpost is generally the best option.
      • High heat can damage some fabrics so if you do take your threads for a spin in the dryer, set the device on 'medium' or 'warm' rather than hot.
      • A dryer is recommended for your rain jacket or pants, as it helps recharge the water repellant treatment on the outside of the fabric.
    + Shipping
    • Items are generally packed and sent the same day your order is received.
    • Costs $9 by overnight courier within New Zealand.
    • NZ$12 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
      4.8 Based on 176 Reviews
      5 ★
      89% 
      157
      4 ★
      7% 
      13
      3 ★
      2% 
      4
      2 ★
      1% 
      2
      1 ★
      0% 
      0
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      Filter Reviews:
        HS
        20/09/2024
        Harvey S.
        New Zealand New Zealand

        A great pair of pants

        Good length and cut. Lightweight, easy to clean, warm when you need warm but still cool enough for summer rides. Great bike pants and great tramping pants. This is my 3rd pair. My first 2 pairs are still like new and I wear them everywhere except to bed.

        MP
        28/08/2024
        Mike P.
        Australia Australia

        Great shorts for skinny legs.

        This is the third pair of slim Jim's I have bought. I have tried other brands and when you have legs like flag poles they look like, well, you're flying a couple of flags. These fit well and wear well just like all Ground Effect gear.

        HM
        09/07/2024
        Helen M.
        New Zealand New Zealand

        Slim Jims, a frustrating pair of shorts

        Reviewing these after about 2,000km of riding. The initial fit of these when you first put them on is nice, however it really goes downhill after some riding. I find they ride down a lot, especially in hot sweaty conditions (and according to the fit chart I'm bang on for the size I bought). The gusset also seems oversized, giving you an unfortunate saggy bottom effect unless you really pull them up. Lastly, the pockets are so shallow they're only good for small items - you can't keep a phone in them and ride, it ends up digging into your hip. On the positive side, the material is nice and build quality seems good, shame about the design.

        12/07/2024

        Ground Effect

        Hi Keith, thanks for your review. That certainly sounds a bit odd. I have emailed you separately to try and sort out a solution. Pedal on, Ernie

        JW
        07/06/2024
        Jonathan W.
        Australia Australia

        Bike shorts

        Happy customer. They have a water repellent feature (not waterproof), dry really quickly, fit snug so don't get caught on the bike, comfortable, my mate was impressed so is going to buy some. I recently used them for a week touring on my gravel bike.

        RA
        28/05/2024
        Ray A.
        New Zealand New Zealand

        Slim Jims

        Ground effect gear is the best! Extremely hard wearing and very functional. Slim Jim's are great for touring covering riding and casual bases. Like the snug fit and pocket options.