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
Free standard shipping on orders over $125. Not loving it? Full-priced and unworn items can be exchanged for free within 30-days of purchase. Full-priced and unworn items can be returned for an $8 fee within 30-days of purchase.
Trail Running
Exploration
Trail Racing
Stash-Hers 5"
$75.00
Men's Speedsters
$70.00
Trail Running
Exploration
Trail Racing
Women's Layer Zero Tee SS
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Men's Windstop Cocoon
$150.00
Overall rating: 3.0 / 5 from 2 reviews.
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"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."
"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."
