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- The 5411-IDBK is Pure Blue Japan’s heavyweight interpretation of the classic indigo T-shirt. Drawing inspiration from vintage athletic wear, it combines a substantial jersey fabric with sweatshirt-style construction, creating a piece that sits somewhere between a traditional T-shirt and a lightweight sweatshirt.
The fabric is knitted from 10-count slub yarns, giving it a noticeably heavier feel and a more pronounced texture than Pure Blue Japan’s standard jersey styles. The uneven yarns create a rich surface character, while the low-gauge knit provides structure and durability without sacrificing comfort.
Construction details include a vintage-inspired V-gusset at the neckline, raglan sleeves, and ribbed cuffs — elements more commonly associated with classic sweatshirts that enhance both comfort and durability.
Over time, the deep indigo gradually softens and reveals a wider range of blue tones, highlighting the fabric's uneven texture and allowing each piece to develop its own character.
| Material: | 100% Cotton |
| Yarn Count: | #10 |
| Fabric Type: | Knitted |
| Dyeing: | Rope-Dyed Indigo + Black Overdye |
| Fabric Finish: | One-Washed |
| Silhouette: | Regular Fit |
| Origin: | Made in Japan |
| Details: | |
| - Binder Neck Construction | |
| - Front V-Gusset Detail | |
| - Raglan Sleeves | |
| - Black Shoai Leaf Embroidery | |
| - Ribbed Cuffs | Model: |
| - 178 cm / 68 kg ( 5'10" / 150 lbs ) — Wearing Size 3 for a Regular Fit | |
| Size | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|
| Shoulder | --- | --- | --- | --- | --- |
| Chest | --- | 108 | 114 | 118 | 126 |
| Waist | --- | 52 | 55 | 57 | 61 |
| Hem | --- | 52 | 55 | 57 | 61 |
| Sleeve Length | --- | 34 | 37 | 39 | 42 |
| Arm Hole | --- | 24 | 25 | 26 | 27 |
| Body Length | --- | 62 | 65 | 68 | 71 |
• Measurements are based on one-washed T-shirt.
• Slight variations may occur due to manual measurement and washing.
• Please wash separately, as indigo dye may transfer to other garments.
- Measure straight across from shoulder seam to shoulder seam on the back.
- Measure straight across the front of the garment, from armpit to armpit.For size chart reference, chest measurement is shown as full circumference ( flat measurement x 2 ).
- Measure across the narrowest part of the shirt — from seam to seam — between the chest and the hem.
- Measure straight across the bottom edge of the shirt, from one side seam to the other — just above the curved hem.
- Measure from the top of the shoulder seam straight to the end of the cuff.
- Measure from seam of collar all the way down to the end of the cuff.
- Measure vertically from the shoulder seam down to the bottom of the armhole seam.
- Measure from the center of the base of the collar (just below the collar band) straight down to the bottom hem.
- Measure straight across the top of the waistband from edge to edge, then double the measurement.
- Measure the front rise from the crotch seam straight up to the top of the front waistband.
- Measure from the crotch seam to the top of the back waistband.
- Measure 7.5 cm (or 3 inches) up from the crotch seam, then go straight across from side to side while laid flat, then double the measurement.
- Measure horizontally from the crotch seam straight out to the outer edge of the thigh.
- Measure 33 cm (or 13 inches) down from the crotch seam along the inside leg seam.
- Measure straight across the leg from one side to the other.
- Measure from the crotch stitch all the way to the end of the leg.
- Measure straight across the bottom cuff — from one side of the leg opening to the other.
– Free domestic shipping on orders over ¥20,000 ( Tax included ).
– Free worldwide shipping is available, with thresholds varying by location.
– For more information, please refer to our Shipping Policy and Return & Refund Policy.