Trail Running Apparel for People Who Keep Showing Up

Runner-founded gear for trail miles, ultra finishes, and adventures earned the hard way. Printed to order with less waste.

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  • Runner-Founded

    Designed by people who know long miles, steep climbs, and aid-station mornings firsthand.

  • Printed to Order

    Made when you order to reduce overproduction and unnecessary waste.

  • Satisfaction Guaranteed

    If something isn't right, we'll work with you to make it right.

Made to Run

Made to Run is our short list of moisture wicking performance shirts for runners who actually sweat through their gear. Every tee here is lightweight polyester with a quick dry, anti microbial finish, built for long efforts on hot singletrack, tempo days and race mornings where the start line is cold and mile 18 is not.

These are the shirts we reach for when the run matters. Athletic fit, no rubbing seams, and prints that won't crack after the hundredth wash. The graphics carry the same trail humor you'll find across Sloth & Duck, from the runner who only hits pavement to get back to dirt to the one who's proud to be grumpy at the aid station.

Want the full lineup? Browse all performance tees or shop premium trail running apparel.

Sloth & Duck founders Scott and Laura at an ultra aid station wearing Sloth and Duck Ultra Runner performance tees

Meet The Sloth & The Duck

Built by runners. Printed to order.

We started Sloth & Duck in 2023 to make trail gear for people like us: the ones who keep moving long after the pace stops looking reasonable. Every design comes from the miles, climbs, and aid-station mornings we know firsthand.

Shop the tee we're wearing

Read Our Story

Everyday Trail Tees

Everyday Trail Tees are the soft cotton shirts for the days between the long runs. Recovery jogs, coffee after the group run, the drive to the trailhead, or the Monday after a race when you want everyone at work to know where you were all weekend.

Each tee carries an insider line for trail and ultra runners: scenic detours, plant powered bad decisions, DNF honesty and the occasional bear. Comfortable enough to live in, with designs that land with the people who get it and start conversations with the people who don't.

Need something technical for the run itself? Head to Made to Run for moisture wicking performance tees, or see every design in Running Trail Tees.

Celebrating 26.2 or shopping for a runner who earned a laugh? Read our guide to funny running apparel for marathon finishers for post-race shirt ideas and thoughtful finisher gifts.

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Layers for the Long Haul

Layers for the Long Haul is a tight edit of our warmest trail running sweatshirts and hoodies. Built for 4 a.m. start lines, the long wait at mile 60 for your runner to come through, and the drive home when your legs have quit but your brain is already planning the next one.

You'll find heavyweight crewnecks and pullover hoodies with designs for vert chasers, summit earners and 100 mile finishers, including a personalized ultramarathon crewneck you can make your own. Cozy enough for crew duty, durable enough to throw in the drop bag.

Looking for more options? Shop the full trail running sweatshirts and hoodies collection or browse ultra running apparel.

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Shop by What You Need

  • Trail Running Cheaper Than Therapy Performance T-Shirt -White - Sloth & Duck

    Performance Shirts

    Moisture-wicking shirts made for the run.

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  • Husband Dad Ultra Running Legend Vintage Distressed T-Shirt -S - Sloth & Duck

    Everyday Tees

    Soft cotton tees for life beyond the trailhead.

    Shop Tees 
  • 100 Miles Mountain Outline Crewneck Sweatshirt -S - Sloth & Duck

    Sweatshirts & Hoodies

    Warm layers for cold starts and recovery miles.

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  • Vert Gained, Not Given Trail Running Performance T-Shirt -XS - Sloth & Duck

    Ultra Running

    Designs for the miles beyond the marathon.

    Shop Ultra 

Beyond the Run