UNDR PRIME - Onyx Black
It's PRIME for a reason.
Introducing the UNDR PRIME Boxer Brief. Where modern luxury meets everyday comfort. Crafted from ultra-soft TENCEL™ Modal, our boxer briefs deliver a silky-smooth sensation against your skin for all-day comfort. Engineered for the perfect fit and built with eco-friendly, breathable fibers. They provide more than just style—they boost your confidence too. Perfect for sports, casual wear, or formal occasions, PRIME boxer briefs are the ultimate choice for any occasion. Elevate your everyday essentials with a pair that feels as good as it looks.
Our Partner
Zero-Feel Smooth: Experience the silky softness that feels as gentle as a feather, enhanced by the luxurious touch of a silk-crafted crotch.
Ultra Stretchable: Enjoy 360° 4-way stretch design for effortless, unrestricted movement.
Moisture Wicking: Stay cool and dry all day with advanced moisture-wicking technology that keeps sweat at bay.
Naturally Breathable: Designed to keep you cool and fresh, our materials promote airflow and moisture regulation, ensuring all-day ease. Perfectly suited for an active lifestyle.
Naturally Skin-Friendly: Made from gentle, hypoallergenic TENCEL™ Modal fibers that keep your skin comfortable and irritation-free.
92% TENCEL™ Modal / 8% Spandex.
UNDR Boxer Briefs are made from premium TENCEL™ Modal fibers, offering an incredibly soft, breathable feel against your skin. Sourced from sustainably harvested beechwood in certified renewable forests, TENCEL™ Modal is up to twice as soft as cotton. Not only does this luxurious comfort last longer, but the fabric’s enhanced durability stands up to frequent washes and wears. Made from natural materials, our boxer briefs regulate moisture and support your body’s natural temperature, keeping you comfortable all day long. moisture absorption and release, ensuring superior breathability and supporting your body’s natural thermal regulation.
Premium fabrics require proper care to maintain their quality.
- Hand Wash
- Machine Wash Cold
- Gentle Cycle
- Do Not Bleach
- Do Not Tumble Dry
- Do Not Iron
Get Free Secure Tracked Shipping on Orders Over RM89.
We accept returns and exchanges for wrong sizes, incorrect items, or defective products only.
Please note that our Boxer Briefs can only be returned or exchanged if the packaging is un-opened.
Choose options
Moisture Wicking
Ultra Strechable
Signature Waistband
Naturally Breathable
The Future of Underwear, Made for you
Every piece we craft isn’t just underwear. It’s a statement, a story, and the cornerstone of your everyday confidence.
Pick Your favorite colour
The PRIME collection features a range of colors, including Onyx Black, Graphite Grey, and Native Silver.
Fits for Everyone
Available in 6 different sizes, exclusively designed to provide the perfect fit for every body shape.
Customer Reviews
Bought 1 pack from UNDR and absolutely loved it. The underwear is very comfortable to wear and packaging is top notch design. Great job and keep it up
Nice pants ,fast delivery, packing carefully support next time.
So far, this is the best underwear I’ve. I like the material, it is smooth like silk , and super breathable.
I like the black colour, the prime tag also very special. Will buy more in the future
Recently bought the onyx black underwear and it subvert my expectations. Not only the design itself is sleek but also versatile as it seamlessly handles both performance and comfort making it an excellent choice for exercise and casual wear without needing me to change to a different pair.
