The Loopback Straight Leg Vintage Trackies are an easy pair to throw on for training or everyday wear. Made from loopback cotton jersey, they have a solid weight with a comfortable feel. The relaxed straight wide leg fit gives them a laid back look, while the vintage wash adds a worn in feel from the first wear. An encased elastic waistband with external drawcords lets you adjust the fit, side pockets keep things practical, and the embroidered Muscle Nation logo finishes the look.
Product Features
- True to size
- Relaxed fit
- Straight wide leg fit
- Encased elastic waistband with external drawcords
- Side pockets
- Vintage wash finish
- Muscle Nation embroidery
- Loopback jersey fabric
- 330GSM
- 100% Cotton
Size Guide
Model: Immy - 174cm, wears size XS
Sizes below are approximate. Compare with a garment you already own and like. If between sizes, size up for a relaxed fit or down for a tighter fit.
| Size | US | Waist (in) | Waist (cm) |
|---|---|---|---|
| XXS | 0 | 24–25 | 61–64 |
| XS | 2 | 26–27 | 66–69 |
| S | 4 | 28–29 | 71–74 |
| M | 6 | 30–31 | 76–79 |
| L | 8 | 32–34 | 81–86 |
| XL | 10 | 35–37 | 89–94 |
| XXL | 12 | 38–40 | 97–102 |
How to measure
- Waist: measure around narrowest part of waist.
- Hips: measure around fullest part of hips and bum.
- Inseam: measure inside leg from crotch to ankle.
- Chest: measure around fullest part of chest.
Fit tips
- Compression pieces should feel snug but not restrictive.
- Training tops and tees are designed for movement.
- For a looser feel, go one size up.
Returns
We hope you love your new items! If you're not 100% satisfied, return within 30 days for a full refund or exchange. Sale items are final.
Shipping
- US — Free over $130, otherwise $9.99
- NZ — $10.00
- USA / UK — $12.00
- Europe — $14.00
Reviews
- ★★★★★
Excellent quality
Honestly the best gym apparel I've owned. Fit is true to size and the fabric holds up after dozens of washes.
Sarah M. · 12 Mar 2026
- ★★★★★
Worth every dollar
Bought two more in different colours after the first one. Comfortable for lifting and running.
Daniel R. · 28 Feb 2026
- ★★★★★
Great fit, slightly long
Love the cut and the colour is exactly as pictured. Length runs a touch long for me but otherwise perfect.
Priya K. · 14 Feb 2026
- ★★★★★
MN never disappoints
Quality is on par with my other MN Generation pieces. Shipping was fast and packaging was on point.
Marcus T. · 02 Feb 2026






