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Expntl Athletics

Faster Than Light Short- Midnight Black

Faster Than Light Short- Midnight Black

Regular price $56.00 USD
Regular price Sale price $56.00 USD
-Liquid error (snippets/price line 88): divided by 0% OFF Sold out

Summer running has never looked this good. We merged our best selling fabric with the functional design of our Speed Shorts to bring you our Faster Than Light Short. These shorts fit and feel like a glove, with improved sizing adjustments from our Speed Shorts. They are a Summer training staple, and scream runner girl. 



- Our best selling fabric, made for high intensity movement

- Unique 1/2 elastic waistband taper design for maximum comfort around your stomach (no pinching around your stomach) while still ensuring shorts do not budge

- Thigh design ensures spandex do not ride up during movement

- Side pockets, perfectly placed and sized for weightless feel with zero movement. Made for your phone, keys, gels, and more

- No front seam 

- Reflective logo on the back

- Flattering back "V" seam to accentuate the glutes


Inseam measurements:

We do NOT believe that one size fits all, which is why we use a grading method for our inseam measurements. This allows the shorts to look and feel the same on all sizes. 

Inseam Grading of Spandex Shorts:

xsmall- 9 cm

small- 10.2 cm

medium- 11.4 cm

large- 12.6 cm 

xlarge- 13.8 cm



- Runs true to size. If you are in between sizes, we recommend sizing up. 

- Caitlyn is 5'8, has a 26" waist, and wears a size xsmall. 

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Customer Reviews

Based on 11 reviews
Betsy R

I ran my second marathon in these shorts this past weekend, and can not sing their praises enough. There was ZERO movement. They stayed in place the entire race and is ultimately what I attribute to not chafing despite the rain throughout. They were so comfortable and really helped feel more confident!

Size Up

Ran a half marathon in these with no issues! The waste was tight enough and the legs did not roll up on me and I did not think they were too tight on my thighs, but I did read other reviews and size up to a large when I'd normally order a medium. I would recommend sizing up! And I love the pockets. They could easily hold my phone and gels during my race without falling down.

Worth the hype, but snug

These shorts absolutely do what they promise! They stay in place, have nice deep pockets to hold your things, and are extremely flattering. My one issue is they fit my waist perfectly, but are quite tight around my thighs. I ordered a small, which is historically what I have always worn for all athletic clothes. Overall they are definitely high quality and have held up very well so far!


I read reviews on these shorts and they were so good I just had to try for myself. The hype is real. 18mi long run, shorts didn’t bunch up and stayed in place. I’m actually shocked. I didn’t know this was possible on these kinds of shorts. The material is also just so nice. The folded fabric at the top seam in the front is perfectly comfortable. 100% recommend these. Will definitely be getting again at some point.

Ashley Swart
Great fit…but different colors fit differently.

I have these in both black and the dark blue in size small and the black shorts are definitely tighter and more compressed as compared to the dark blue shorts. I bough the black first and the blue just now so I had no idea there was a difference. The small blue are a little more comfortable and could be worn all day as the black I would use only to run and then take off immediately.