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FOB FACTORY / F0545 ID Nylon Track Pants
lightweight track pant designed to evolve over time. Made from FOB’s original indigo cotton-nylon fabric, it features an easy, comfortable fit.
Woven at high density, the fabric offers wind resistance and durability while maintaining a refined structure that creates a clean silhouette.
Only the indigo-dyed cotton yarn fades with wear, allowing the pants to develop a unique character distinct from denim over time.
Military-inspired knee tucks add dimension to the silhouette while allowing for ease of movement. A drawcord at the hem lets you adjust the shape to suit your styling.
Bringing depth to simple spring and summer outfits, this piece combines everyday functionality with the signature FOB appeal of enjoying the aging process.
indigo
black
indigo
black

FOB FACTORY
Based in Kojima, Kurashiki City, Okayama—one of Japan’s leading production hubs—this brand carries out every process domestically. Inspired by vintage workwear, military garments, and denim, it aims to create clothing that customers will still be glad they chose even three years down the line.


Character that deepens with wear
The fabric blends indigo-dyed cotton yarn with black nylon yarn, woven at high density to create a naturally firm texture. It combines the softness of cotton with the smooth, dry touch of nylon.
Exceptionally lightweight yet wind-resistant and durable, it is well suited for frequent wear during transitional seasons. Over time, the indigo-dyed cotton develops a rich patina, allowing you to enjoy its natural aging process.
A single tuck below the waist provides room around the hips. The waistband features an easy design with elastic and an internal drawcord. Belt loops are also included, allowing for styling with a belt when tucking in a top.

The distinctive double knee tucks are derived from military design, enhancing mobility and making them suitable for active movement.
A drawcord at the inner hem allows for adjustment of both silhouette and fit.
Designed with generous width yet refined into a clean wide-tapered silhouette. The knee tucks create a natural volume, forming a three-dimensional line.
By tightening the drawcord at the hem, you can adjust the length and volume, allowing for versatile styling with footwear—from leather shoes to sandals—across seasons.




SIZE
※Check out the size guide for more accurate measurements.
Staff comment
| ●Staff Height / Weight: 165cm / 64kg Wearing size: S Body type: Slim Thighs: Standard Fit (Waist): Just right Length: Slightly long The waist fits just right and feels secure with a light adjustment using the drawcord. There is room around the hips and thighs, offering a relaxed wearing experience. The length runs slightly long, but a single roll keeps it from touching the floor when barefoot. |
| ●Staff Height / Weight: 171cm / 70kg Wearing size: M Body type: Standard Thighs: Standard Fit (Waist): Just right Length: Just right The waist fits comfortably. There is no tightness around the hips or thighs, and it allows easy movement when lifting the legs. The length sits just above the floor when barefoot. |
| ●Staff Height / Weight: 177cm / 73kg Wearing size: L Body type: Standard Thighs: Standard Fit (Waist): Just right Length: Just right The waist has a comfortable fit, with room through the hips and thighs. It allows for easy movement, even when bending or squatting. The length is well-balanced, falling slightly above the heel. |
| ●Staff Height / Weight: 181cm / 78kg Wearing size: XL Body type: Solid Thighs: Solid Fit (Waist): Just right Length: Just right The waist fits well, with ample room around the hips and thighs. There is almost no sense of restriction, and despite the non-stretch fabric, it allows for comfortable movement. The length feels balanced even on a taller frame, offering a clean full-length silhouette. |
SPEC
| Materials | 78% cotton,22% nylon |
|---|---|
| Country of Origin | JAPAN |
| Model Wearing | Wearing size L(178cm/70kg) |
| Care Instructions | ※Please note that the colours may look different from the real thing depending on your monitor environment. |
| Weight | 470g |
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