To choose the correct size for you, measure your body as follows:
- Chest :
Measure around the fullest part, place the tape close under the arms and make sure the tape is flat across the back.
Koshin Apparel Co — Live with Purpose
polo shirts
Koshin Apparel Co — Live with Purpose
$20.00 – $35.00
Koshin Apparel Co blends timeless Japanese wisdom with modern minimalist design. The word “Kōshin” (恒心) means “steadfast heart” or “constant spirit”—the kind of inner resolve that anchors you through life’s shifting winds.
T-Shirts & Polo Shirts
| TO FIT CHEST SIZE | INCHES | CM |
|---|---|---|
| XXXS | 30-32 | 76-81 |
| XXS | 32-34 | 81-86 |
| XS | 34-36 | 86-91 |
| S | 36-38 | 91-96 |
| M | 38-40 | 96-101 |
| L | 40-42 | 101-106 |
| XL | 42-44 | 106-111 |
| XXL | 44-46 | 111-116 |
| XXXL | 46-48 | 116-121 |
Women's Sizes
- Chest :
Measure under your arms, around the fullest part of the your chest. - Waist :
Measure around your natural waistline, keeping the tape a bit loose.
| UK SIZE | BUST | BUST | WAIST | WAIST | HIPS | HIPS |
|---|---|---|---|---|---|---|
| N/A | INCHES | CM | INCHES | CM | INCHES | CM |
| 4 | 31 | 78 | 24 | 60 | 33 | 83.5 |
| 6 | 32 | 80.5 | 25 | 62.5 | 34 | 86 |
| 8 | 33 | 83 | 26 | 65 | 35 | 88.5 |
| 10 | 35 | 88 | 28 | 70 | 37 | 93.5 |
| 12 | 37 | 93 | 30 | 75 | 39 | 98.5 |
| 14 | 39 | 98 | 31 | 80 | 41 | 103.5 |
| 16 | 41 | 103 | 33 | 85 | 43 | 108.5 |
| 18 | 44 | 110.5 | 36 | 92.5 | 46 | 116 |
Brand Narrative:
Koshin Apparel Co blends timeless Japanese wisdom with modern minimalist design. The word “Kōshin” (恒心) means “steadfast heart” or “constant spirit”—the kind of inner resolve that anchors you through life’s shifting winds.
Our premium casualwear is designed for those who choose to live intentionally, embracing a grounded and meaningful lifestyle. Each piece is made for durability, simplicity, and symbolic strength—embodied in our clean tortoise logo, a powerful icon of persistence and balance.
Inspired by the calm endurance of the tortoise, Koshin Apparel Co helps you express your values without saying a word. Whether you’re navigating daily life, travel, or self-improvement, our apparel supports you in living with purpose.
Our Quality Products
High-quality embroidered polo shirts
Custom polo shirts for teams or events
Personalized polo shirts for staff uniforms
Quick delivery custom polo shirts
Eco-friendly custom polo shirts
Affordable custom polo shirts in bulk
Custom-fit polo shirts for men and women
Stylish custom polo shirts for branding
KOshin Apparel Co custom polos online
Related products
polo shirtsManhood Apparel Co — Strength in Simplicity
$20.00 – $35.00 Select options This product has multiple variants. The options may be chosen on the product page
polo shirtsGaman Golf Co — Play with Purpose
$20.00 – $35.00 Select options This product has multiple variants. The options may be chosen on the product page
Reviews
There are no reviews yet.