FastRock™ Sleeveless

$ 80.00

Core
Seasonal Electric Blue
Size

FastRock™ Sleeveless

Size chart

Men's tops

Rabbit size XS S M L XL XXL
Chest 31" - 33" 78.7cm - 83.8cm 34" - 36" 86.4cm - 91.4cm 37" - 39" 94cm - 99.1cm 40" - 42" 102cm - 107cm 43" - 45" 109cm - 114cm 46" - 48" 116.84cm - 121.92cm

Men's bottoms

Rabbit size XS S M L XL XXL
Waist 26" - 27" 66cm - 68.6cm 28" - 31" 71.1cm - 78.7cm 31" - 33" 78.7cm - 83.8cm 34" - 36" 86.4cm - 91.4cm 37" - 39" 94cm - 99.1cm 40" - 42" 101.6cm - 106.68cm
FastRock™ Sleeveless
Free shipping over $125 Easy 30-day returns

Men's FastRock™ Sleeveless

Ready to race the rough stuff. This technical tank is designed to handle high-output efforts on the toughest terrains. It’s lightweight, super breathable, and powered by TrailGuard™ fabric with highly durable nylon to resist abrasion and reduce pilling from packs.

We love it for: trail racing and running

  • TrailGuard™: 89% Cordura® nylon & 11% spandex
  • Super lightweight, durable, abrasion-resistant & smooth
  • Relaxed fit
  • Acrofuse™ bonded seams
  • Perforated back panel
  • Reflective bars
  • Machine wash cold, tumble dry, don't bleach
  • Designed in California, made abroad

Shipping & Returns Show Hide

Free standard shipping on orders over $125. Orders ship within 1-2 business days. Not loving the fit? Returns and exchanges are free within 30 days of delivery.

Ideal for

  • Trail racing
  • running
Trail Running

Trail Running

Exploration

Exploration

Trail Racing

Trail Racing

Born from a quest for better short

#Color_Hawthorn-Rose

Stash-Hers 5"

$75.00

Inseam 5"
Storage 360° waistband storage, side-stash pockets, back-zip pocket
Fabric Innovation Ionic+ silver technology fight odor
#Color_Garnet

Men's Speedsters

$70.00

Inseam 9"
Pockets 2 side stash pockets, back zip pocket
Fabric Innovation Ionic+ silver technology fight odor

Ideal for

  • Trail racing
  • running
Trail Running

Trail Running

Exploration

Exploration

Trail Racing

Trail Racing

Born from a quest for better short

#Color_Hawthorn-Rose

Stash-Hers 5"

$75.00

Inseam 5"
Storage 360° waistband storage, side-stash pockets, back-zip pocket
Fabric Innovation Ionic+ silver technology fight odor
#Color_Garnet

Men's Speedsters

$70.00

Inseam 9"
Pockets 2 side stash pockets, back zip pocket
Fabric Innovation Ionic+ silver technology fight odor

Overall rating: 3.0 / 5 from 2 reviews.

AI Generated Review Summary

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Review highlights

Reviews

Disappointing

"I’ve been wearing Rabbit gear for years, even paying extra to import it to the UK, it’s the best. The fit of this top is completely different to anything else I’ve ordered and I don’t think this was made clear. It’s very wide and short, I’m not sure it would be a good fit on anyone."

— Paul S. (1/5)

Amazing Sleeveless Trail Running Shirt!

"I used the FastRock Sleeveless for the entirety of the 2026 Bighorn 100. I had been on the search for a wide-shouldered sleeveless shirt for a bit and this came out just in time. During the race I planned to pair with some arm sleeves, but the day was overcast so I only used those on-and-off. The wide shoulders worked perfectly with my pack. I took the pack on-and-off multiple times throughout and didn’t need to do any special adjustments. There wasn’t any rubbing at all. I didn’t feel any fabric bunching, either. The fabric-mix of the shirt is great. The top white fabric feels buttery soft and it’s easy to forget it’s even there. It feels tough and durable, but time will tell. The lower gray fabric was highly breathable and also feels tough. There are some small laser-cut holes for enhanced breathability. The slight crop and relaxed fit helped keep my tummy and lower back cool throughout. During the night section I threw on a thin shell over the FastRock and it worked perfectly. No bunching. No bulk. Definitely would recommend this shirt to anyone in search of a sleeveless trail running shirt."

— Adam B. (5/5)

Q&A