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8" Trail Half Tight

Regular price £75
Unit price  per 

8" Trail Half Tight

M's 8" Trail Half Tight

Hurry, only a few left in stock!

Heads up, this gear will ship in 6-10 weeks. Learn more about pre-orders.


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Formfitting, Size Chart William is 6'1" and wears size M

Amplify your run — the Trail Half Tight is made to enhance your endurance pursuits with lightweight compression, moisture-wicking comfort, and six pockets to easily stash everything you need.

Explore more

Pocket it your way

Double-tiered side pockets can fit any size phone, nutrition, a packable windshell like our Zephyr Runner, 250ml soft-flasks or anything else you prefer to carry when going the distance

Made for smooth moves

Laser cut hems provide a seamless, smooth finish while the inseam gusset accommodates the biggest strides



All about the Groundwork
Breathable, moisture-wicking fabric with 4-way stretch provides light compression with an unnoticeable feel in stride

Softer, secure waistband
The soft elastic waistband with external facing drawcord allows for a secure, comfortable fit

Pockets made for distance
Deep double-tiered side pockets can easily accommodate the largest phone sizes (plus case), nutrition + 250ml soft-flasks to provide ample carrying capacity for longer excursions

Keep it secure
An integrated Janji blue s-biner key clip in the top right pocket secures your keys

Back pocket duals as pass-thru
A back pocket ideal for nutrition storage can be accessed from either side or can be used as a pass-thru to secure a top or lightweight layer

Clean cut
Laser cut hems provide a seamless, smooth finish

materials + specs

Groundwork Knit
68% nylon, 32% spandex

Garment made in Vietnam

Weight 128g / 4.5oz (M’s Medium)

Fabric Callout


High-performance, moisture-wicking stretch nylon with durable support. Explore more behind our tights and sports bra fabric.


care instructions

Wash before first use on cold with like colors

Tumble dry low

Heads up — some color bleed may occur
Color bleed, especially with darker colored nylon/spandex blends, is common and could stain light colored garments if washed together.


Groundwork Knit is made using a premium grade nylon that has a significantly tighter woven filament than standard synthetics. Tighter filaments mean less microfiber shedding in the wash-cycle, plus greater durability of the garment (longer lifespan, more wearing).

Groundwork Knit fabric is also bluesign® certified meaning it is free from harmful chemicals and is fabricated in a way that meets a high environmental standard.

Learn more about our sustainable initiatives here.

Customer Reviews

Based on 117 reviews
David Durston
8 inch black ground work half tight shorts

Excellent quality of product and extremely comfortable to wear.

Eugene Mackie
Close to perfect

I absolutely love my groundwork shorts. The material is perfect, length perfect, fit perfect. I've never felt comfortable wearing tight shorts, but these feel so good I forget to be self conscious about it. I really like the double side pockets especially the little key clip. I would prefer if there was a wider, perhaps slightly deeper pocket at the back, maybe with a zip, so I could put my phone in it. It would fit in the side pockets, but it's just my preference.

Sergio Abarca
The best half tight I’ve found

This has been a very welcome addition to the gear bag, and has become my go-to long run or trail run short. Snug fit but not tight around legs or seams, doesn't ride up, stays up on the waist, thick enough for 50 degrees but breathable enough for AZ Summers. Literally couldn’t ask for more pocket space.. fit 2 18oz water bottles, my phone, keys, sunglasses, 6 nutrition gels, and my headphones case for my recent 20mi trail run. Waist band strings are extra stretchy but it’s a non-issue, would rather this than too rigid. Extremely satisfied with these!!

Ed Rankin
Awesome running tights

I've been a runner for 46 years. I've tried just about every brand of running short and tights in existence. I've never worn a more comfortable, more functional running short/tight than this one. Bring on more colors! I'll buy them!

The. Best. Half Tights. Period

The only thing that annoys me is that it took me this long to try these half tights. Absolutely the best I’ve ever worn and I’ve worn them all! Had to get three pairs just in case they discontinue them at some point.
All the pockets are spot on and perfectly positioned. Zero bounce no matter what you put in them. I’d like to find an issue with them but can’t find one. 6 stars out of 5!


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