JustSun slim-fit tracksuit bottoms joggers with zip pockets (men’s)

What they’re for (and what you get)

JustSun men’s tracksuit bottoms are gym and sports joggers designed for movement rather than sitting still. On paper, they’re aimed at jogging, training, fitness sessions, and general workout-and-gym wear. The key idea is practical comfort: stretch and breathable fabric that should help the legs, hips and waist stay flexible while you exercise.

You’re also getting storage that’s more than “basic sweatpants convenience”. Two zip pockets are there to hold onto essentials like your phone, wallet or keys without the usual worry of things slipping out during a run, warm-up circuit, or a busy commute to the gym. If you’ve ever had to choose between comfort and carrying your stuff, that’s the problem these joggers are trying to solve.

That said, this is still a slim-fit tracksuit bottom, so it won’t suit everyone—especially if you prefer a looser, more relaxed drape.

Key takeaways on the fit and feel

The waist is elasticated with a drawstring, so you can dial in a comfort fit. For many people, that’s the difference between “fine for the first 10 minutes” and “actually wearable for a full session”. The slim-fit cut suggests a closer shape through the legs, which often looks sharper with trainers and works well for people who don’t want excess fabric around their movement.

One limitation to keep in mind: without seeing the exact material composition, you can’t fully judge how warm or cool these joggers will feel in your usual UK conditions. Breathable is a good sign, but it’s not the same as knowing the fabric weight.

Storage that’s actually secure

The zip pockets are the standout practical feature. When you’re moving around—think dynamic stretches, carrying a phone around the gym floor, or jogging to warm up—non-secure pockets can be a nuisance. Zips add a layer of reassurance.

Not perfect for everyone, though. If you’re someone who likes very lightweight pockets (or you hate any bulk at the sides), the zips may feel a bit more noticeable than open pockets. But for most gym-goers, it’s a sensible trade-off.

Size guide and how to choose

The product includes a size chart in inches for UK S to XXL, with recommended height ranges. This matters because tracksuit bottoms can vary quite a bit in how they sit depending on leg length.

Here’s the sort of guidance provided: - UK S: waist 30-32", hip 42.52", length 39.35", recommended height 63"-65" - UK M: waist 31-33", hip 44.09", length 40.10", recommended height 65"-67" - UK L: waist 32-34", hip 45.67", length 40.90", recommended height 67"-69" - UK XL: waist 33-35", hip 47.24", length 41.35", recommended height 69"-71" - UK XXL: waist 34-36", hip 48.81", length 42.10", recommended height 71"-74"

It makes sense if your measurements line up with the chart and you’re comfortable choosing based on both waist and length. If you’re between sizes, it may come down to whether you value a closer slim fit or a bit more room.

Everyday use examples

Imagine finishing work and heading straight to the gym. The drawstring waist helps you adjust for comfort quickly, and the two zip pockets mean you can keep your phone and keys with you during warm-up drills rather than carrying everything in your hand. Or picture a jog: you don’t want loose pocket openings bouncing around, so having zipped storage can make the experience less stressful.

For training at the gym, slim-fit joggers can also look more together under a training top—especially if you like that streamlined athletic look.

What stands out (and what could disappoint)

Key features you’ll notice day to day

• Stretch and breathable fabric support movement during workouts.
• Elasticated waist with drawstring for a comfort fit.
• Two zip pockets for keeping essentials more secure.
• Slim-fit style for a closer, sportier shape.

What you may want to double-check

It may not be a great match if you’re after a very baggy tracksuit look or if you don’t like slim-fit clothing around your thighs and calves. Also, because the details on fabric composition and thickness aren’t provided here, you’ll want to consider your usual training schedule—these sound better for active sessions than for cold, windy, all-day wear where warmth becomes the priority.

Should you buy it?

This is a solid pick if you want men’s tracksuit bottoms that feel designed for training—especially if you value zip pockets and a stretch-and-breathable approach for jogging and gym workouts. The drawstring waist is also a practical touch for fit.

You may want to skip it if you prefer loose-fitting joggers, or if you need clarity on warmth and fabric weight for your typical conditions. In those cases, it can feel more like a gym-focused slim-fit option rather than a “do everything” sweats replacement.

Mini FAQ

Will the zip pockets hold essentials like a phone?

The design is explicitly intended to prevent common items like phones, wallets and keys from being lost, so it’s reasonable to expect secure carry during activity.

Is the waist adjustable?

Yes. It uses an elasticated waist plus a drawstring, which should help you fine-tune the fit.

Is this suitable for jogging as well as the gym?

That’s the stated use: jogging, training, fitness, sports, workouts and general gym activities.

How do I pick the right size?

Use the provided UK size chart (waist, hip and length) and the recommended height range as a guide, since the length matters for a slim-fit cut.

Does it suit a relaxed style?

Not really. The slim-fit cut means it’s more likely to suit people who want a closer athletic shape rather than a baggy, everyday drape.