ZT Basic Heavyweight Cotton Sweatshirt
The ZT Basic Heavyweight Cotton Sweatshirt is a unisex foundational layer engineered for maximum structure, durability, and everyday versatility. Defined by its ultra-heavyweight cotton construction and clean minimal silhouette, the piece functions as a core wardrobe essential across street, casual, and utility-driven contexts.
Constructed from 100% cotton, the fabric delivers a dense, substantial hand feel with strong natural breathability and long-term wear stability. The 530 g/m² ultra-heavyweight composition provides significant thermal retention and a rigid, structured drape that maintains silhouette integrity across repeated use.
The oversized fit is paired with a regular sleeve construction and classic crewneck (O-neck) design, creating a balanced silhouette that emphasizes volume without compromising wearability. The long-sleeve structure enhances coverage and seasonal adaptability, making the piece suitable for layered styling or standalone use.
Minimal in visual language yet high in material presence, the sweatshirt transitions seamlessly across streetwear, sport, office casual, school environments, outdoor activity, and daily wear, functioning as a cornerstone heavyweight layer within the ZT apparel system.
ZT Basic Heavyweight Cotton Sweatshirt
Product Details
Unisex Fit
100% Cotton
Fabric Weight: 15.6 oz/yd² (530 g/m²)
Ultra-Heavyweight Construction
Oversized Silhouette
Round Neck (O-Neck) Crewneck Design
Long Sleeve Construction
Regular Sleeve Structure
Structured Pure Cotton Fabric
Suitable for Casual, Street, Sport, Office, School, Outdoor, and Daily Wear
Seasonal Range: Spring / Autumn
Care Instructions
Machine wash cold (30°C gentle cycle)
Do not bleach
Tumble dry low
Iron at low temperature
Avoid direct heat on printed areas
Do not dry clean
Production Note
Minor variations in fabric tone, stitching alignment, dye consistency, or finishing may occur as a result of standard manufacturing processes. These variations are inherent to production and do not affect overall garment quality, durability, or performance.
Size Chart
2XS | XS | S | M | L | |
cm | cm | cm | cm | cm | |
Chest | 58 | 60 | 62 | 64 | 66 |
Length | 65 | 67 | 69 | 71 | 73 |
Shoulder | 57 | 58.5 | 60 | 61.5 | 63 |
Sleeve length | 52 | 53 | 54 | 55 | 56 |
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Return & Refund Policy
At ZONETECT, each product is made to order. Because of this production model, we do not accept returns or exchanges for reasons such as incorrect sizing, change of mind, or general dissatisfaction.
However, your experience matters.
If there is an issue with your order, we will make it right under the following conditions:
Damaged, Defective, or Incorrect Items: If your item arrives damaged, defective, or incorrect, you are eligible for a replacement or refund.
To process your request, please:
Contact us within 7 days of delivery
Provide your order number
Include clear photos showing the issue
Once reviewed and approved, we will issue a replacement at no additional cost or provide a refund.
Non-Returnable Items
Incorrect size selection
Buyer’s remorse or preference changes
Minor variations in color or placement due to the production process
Order Changes & Cancellations: Orders can only be modified or canceled within a limited window after purchase. Once production begins, changes are no longer possible.
Shipping Info
At ZONETECT, all products are made to order through our print-on-demand partners. This allows us to deliver unique, high-quality pieces while minimizing excess inventory.
Production Time: Each item is custom-produced after your order is placed.
Standard production time: 2–5 business days
Production times may vary during peak seasons or high-demand periods
Shipping Time: Once your order is fulfilled, it is shipped based on your selected delivery method:
U.S. Shipping: 3–7 business days
International Shipping: 7–21 business days
Please note that shipping times are estimates and may vary depending on carrier conditions, location, and external factors.
Shipping Costs: Shipping rates are calculated at checkout based on your location and order details.
Order Tracking: Once your order has shipped, you will receive a confirmation email with tracking information so you can monitor its progress in real time.
Address Accuracy: Customers are responsible for providing accurate shipping information. ZONETECT is not responsible for orders shipped to incorrect addresses provided at checkout.
Delays & External Factors: While we strive to meet all estimated delivery times, delays may occur due to:
Carrier issues
Customs processing (for international orders)
Weather or unforeseen logistical disruptions
ZONETECT is not liable for delays once the order has been handed to the shipping carrier.