REVIEW: Ten Thousand Interval Pant + No-Show Sock

I’ve tested a lot of gear over the past year, but few pieces have stayed in my lineup like the Ten Thousand Interval Pant and No-Show Sock. This is one of the few combos I consistently grab for both training and commuting—especially on heavier lifting days or colder mornings.

And after fielding a few DMs about how the Interval Pant compares to the Session Pant, I figured I’d share what’s actually worth knowing if you’re debating between the two.

Interval Pant: The Utility Player of Pants for Fitness

If you’re looking for pants that can hold up through intervals, warmups, CrossFit, and strength work without looking like you just rolled out of bed—this is it.

The Interval Pant has a slightly heavier, more structured fabric than the Session Pant, but still breathes well enough for most sessions. Think: substantial enough to wear to and from the gym on cooler days, but still mobile enough to crush a sled push or a high-rep squat set. I’ve worn them through everything from walking lunges to kettlebell snatches.

Why I prefer them over the Session Pant for training:

• The material doesn’t ride up mid-session. The lighter weight of the Session Pant makes it great for running, but it can creep during lifting or dynamic movement. I don’t want to keep adjusting between sets.

• Deeper pockets and better waistband. The Interval Pant locks down my phone and keys without bounce. I also like that the drawcord can be worn inside or out—it’s a small detail, but a smart one.

• Zippered cuffs + gusseted leg = easy on/off. I’ve swapped shoes post-session without stripping down. No bunching, no fighting to peel them off.

If I’m lifting or doing hybrid training, the Interval Pant wins—every time.

Training No-Show Sock: A Crew Sock in Disguise

Okay, hear me out. I only added these socks to hit free shipping.

But they might be the surprise MVP here.

While marketed as a no-show, they function a lot like a minimalist crew sock when it comes to performance: they’ve got legit arch support, solid grip through lateral movement, and zero slippage. That mix of mesh zones and silver-threaded fibers keeps them breathable and funk-free—no swampy feet, even on high-humidity cardio days.

Tested in:

• Cross-trainers

• Barefoot shoes

• 3-mile treadmill run + kettlebell complex (back-to-back)

No blisters, no stretching out. Legit one of the best training socks I’ve tried.

Interval vs. Session: What You Actually Need to Know

I’ve trained in both the Interval Pant and the Session Pant, and while I don’t think there’s a bad choice, they’re built for different purposes.

If you’re training hard and want one pair that can flex across gym, errands, and everyday wear—go Interval.

If your sessions are mostly cardio, runs, or hot-weather training, the Session Pant makes more sense.

Final Verdict

The Interval Pant is still my top pick for all-around training. It’s one of the few pants for fitness that doesn’t feel like a compromise—form meets function without screaming “athleisure.” It holds up to hard work, fits like it was designed by someone who actually lifts, and even pulls off casual wear without trying too hard.

And the No-Show Sock? Way more than an add-on. If you like the structure of a crew sock but want to keep things low-profile, this one’s a no-brainer.

Let me know if you’ve put these through longer runs, hikes, or travel—I’m curious how they stack up across different use cases.