










BIOFIBER tech shirt
This is our 8 panel BIOFIBER shirt, made for performance. Lightweight, with a 37% biofiber blend and organic cotton that breathes well and keeps you cool.
Specs:
- 37% recycled spandex, 63% organic cotton
- Anti-Pilling
- Enzyme washed
- Phantom soft
- Pre-Shrunk
- Color Retention
- 4-way stretch
- Body forming over time
- 190 GSM // 7oz
- Pitchblack Dye
- Sustainable and Ethically sourced
CARE INSTRUCTIONS:
Machine wash cold on delicate
Wash with blacks only
Hang dry
Never put it in the dryer.
Size guide for this product
BIOFIBER tech shirt size guide
These measurements are taken from the clothing laid flat. All numbers are in inches.
How to measure
- Lay a similar garment flat without stretching it. Choose one with the fit you want.
- Measure across the garment at the same points. Compare that width with the table.
- Choose the closest width for a similar fit. A wider garment gives more room.
| Size | Chest width, flat (in) | Garment length (in) |
|---|---|---|
| Small | 17 | 27.5 |
| Medium | 17.5 | 28 |
| Large | 18 | 28.25 |
| X-Large | 19 | 28.5 |
| XX-Large | 20 | 29 |
Choosing your size
This chart is specific to BIOFIBER. Its garment lengths differ from the standard graphic tee chart.
Size names explained
Size names: XS = X-Small, S = Small, M = Medium, L = Large, XL = X-Large, and 2XL / XXL = XX-Large.
Need help choosing? Contact us with the product name and your measurements.
Shipping & Returns
Neo4ic ships globally from San Diego, California. We offer free shipping in the United States on orders $150+. All shipping rates are calculated in the checkout based on your location.
We will exchange any incorrect or damaged merchandise If you change your mind, we will exchange, refund or give store credit on any unwashed, unworn, and undamaged merchandise within 30 days of you order. View our full return policy.
Start a return or exchange. Enter your order details and follow the portal instructions before sending your item back.
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X-SPEC BIOFIBER™
X-SPEC BIOFIBER™ is a lightweight, performance-driven fabric designed for those who move. Developed with 63% organic cotton and 37% recycled spandex, it delivers a smooth yet structured feel, offering breathability, flexibility, and all-day comfort. Built with 4-way stretch, anti-pilling technology, and sweat-cooling properties, it's engineered to go fast whether you're training, exploring, or simply living. This is suited best for warm weather conditions. Pre-shrunk, enzyme-washed, and deeply color-retentive, BIOFIBER™ is the future of active streetwear.





