The Running T-Shirt weighs just 46g. More wind tunnels reduce sweat absorption. This minimizes weight during races, making you feel lighter and enhancing running efficiency. Strategic 'wind tunnel' mesh holes target the body's high heat zones. During running, air passes through these mesh holes, creating direct airflow against the skin, carrying away excess heat, and lowering the perceived temperature. Fewer seams and a seamless fit reduce the risk of chafing, super-light, barely-there feel. Maximum comfort and zero distractions for full race focus.
Features
Lightweight, breathable, antistatic, and quick-dry fabric
Seamless design to prevent chafing
Reflective logo to help keep you visible when running in low-light conditions
Seamless shoulder design for maximum comfort and compatibility with running vest packs
SPECS
Weight: 46g
Fabric: 100% Polyester
No.of Pockets: 8
Activity suitability: Trail running, Road running, Daily training
Washcare
Do not bleach
Do not dry clean
Do not tumble dry
Do not machine wash
Do not iron
Hand wash cold (30°C)
Delivery Information
HAIMONT understands that getting your items in a timely manner is important to you, so we process your order swiftly. Please note that because we make every effort to ship your product as quickly as possible, once the shipping process begins, we are unable to make any changes to your order.
All orders are estimated to ship typically within 1 to 2 business days after the order is placed. Shipping days exclude weekends and holidays.
Currently, we are offering Free Standard Shipping everyday on Orders Over $40. Our standard shipping method is ground shipping. We will ship your order via any of the major mail carriers, including UPS, FedEx, DHL and the United States Postal Service. At this time we are unable to provide the option to choose your carrier of choice.
Orders shipping to APO/FPO addresses will be unavailable. We do not ship to PO Boxes. If your package is not able to be delivered, it will automatically be returned to us. Email us at service@haimont.com to figure out your options for re-delivery!
Standard Shipping
3 to 7 Business Days to the US from US warehouses
7 to 14 Business Days to Asia and Europe
10 to 25 Business Days to Other Areas
Expedited Shipping
1 to 3 business days to the US, additional $15 needed
5 to 10 Business Days to Asia and Europe, additional $20 needed
Other areas are not available
International Shipping (Except United States)
Your package may be subject to the customs fees and import duties of the country to which you have your order shipped. The recipient is responsible for all duties and taxes incurred. Haimont cannot determine these fees during the checkout process.
It usually takes 7 - 25 business days for international orders to be delivered. The product gets handed to your local post office on arrival in your country and as such, delivery times will vary by country depending on the efficiency and expediency of your postal service.
You cannot cancel the order if the product is already shipped out. In this case, please send us a return request when you receive the parcel.
Tracking Your Order
Once your order leaves our warehouse, a tracking number and tracking link will be emailed to you. Tracking codes take one business day to activate.
Backordered Items
If an item is out of stock you will be contacted as soon as possible. You will have the option of waiting for the back ordered item, splitting the shipment and having all the in-stock items sent immediately, choosing a replacement item or canceling the backordered item.
We strive to provide the best customer experience. If for any reason you are not satisfied with the product you purchased from haimont.com, you may return it within 30 days of delivery for a full refund minus any shipping charges. We just ask that the product be in brand new condition with the original tags still attached for full credit.
Ultra-light polyester mesh across the entire shirt for outstanding breathability, quick drying, and reduced sweat absorption.
WindFlow Ventilation System
Full-body wind tunnel structure channels air directly through the fabric, accelerating heat release and maintaining optimal body temperature.
Frequently asked questions
This shirt is purpose-built for high-intensity performance. It’s incredibly lightweight, exceptionally breathable, fast-drying, and designed for all-around comfort. The advanced technical fabric features a “wind tunnel” mesh design that targets high-heat zones, helping release excess body heat and keeping you cool. It’s an ideal choice for trail running, hiking, and endurance training.
“Ultralight” is our signature feature — the men’s shirt weighs just about 57 grams (2.0 oz) and the women’s version only 46 grams (1.6 oz). It’s so light you’ll barely feel it, reducing fatigue and letting you move freely, even during long-distance runs.
Yes. The Haimont Ultra-Light Trail Running T-Shirt features advanced 4- and 6-needle flatlock stitching to minimize seams and reduce friction, giving you an ultra-smooth, comfortable fit. It’s ideal for trail runs up to 30 km and for everyday training.
It features an athletic slim fit—streamlined yet non-restrictive. Underarm and side panels provide extra room for movement while reducing excess fabric weight, giving you a lighter, more aerodynamic feel for enhanced running efficiency.
Absolutely. Despite its featherweight construction, this shirt uses high-tensile, tear-resistant fabric that’s built to last. As long as you avoid heavy abrasion against sharp objects, it can easily withstand rugged trail conditions.
Not easily. Haimont uses advanced dyeing technology with a colorfastness rating of level 4. As long as you follow the care instructions—hand wash in cold water, avoid tumble drying, and keep out of direct sunlight—the colors will stay vibrant wash after wash.
Yes! Reflective logos on the chest and back help keep you visible and safe during low-light runs.
Not at all. The slightly longer back hem offers better coverage, while the side-slit design ensures full range of motion and helps prevent the shirt from rolling up during running or stretching.
When running fabric is light, breathable and quick to dry plus there is no chafing from seams
Will definitely order more from this brand. Can we please have more bright colours and bright running shorts as well :) Well done!
J
Jessie
Very light and fits loose. Bought 2 for a 100K.
q
qiaoyun wang
This was a gift for one of the runners in our family. I was desperate to find a practical gift for a birthday. Apparently this shirt was the perfect gift for my runner. He states that it is the lightest shirt he owns and is almost as good as going without a shirt. It is not only cool but moisture wicking. This is his "go to" shirt for marathons. Will purchase more for him and the other runners in my life.
J
Jasmine Nicole
These are hands down the lightest weight feeling shirt I've worn running. Game changer, especially at this price compared to ~$50-70 name brand competitors. The high viz color on the yellow is very bright which is a great bonus for road running.
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