Reversible Sweatpants

37 total reviews

icon1 Reversible (warm and cold side)

icon2 Weatherproof

icon3 Ultra durable

Size: Size Guide

Free Shipping over $189

30 Day Returns and Exchanges

Lifetime Guarantee


Reversible graphene-integrated sweatpants. Built to retain heat on one side and release heat on the other while protecting you against the elements.






Reversible graphene-integrated sweatpants. Built to retain heat on one side and release heat on the other while protecting you against the elements.

  • Reversible with heat & cold management
  • Extremely durable & abrasion resistant
  • Graphene-integrated fleece
  • Highly water-resistant
  • Breathable
  • Windproof
  • 3 invisible YKK zippered pockets
  • Antibacterial
  • Anti-UV
  • Warm Side: 100% Graphene-integrated polyester (150D/144F+75D) check fleece. Middle membrane: TPU membrane. Cold side: 88% nylon and 12% spandex (70/30 + 30DOP)
  • Weight: 800 grams (size M)
  • Advanced Material: Graphene
  • Tech: GRAPHGRID™

Built upon graphene's extraordinary thermal properties, the Reversible Sweatpants epitomize the balance of technological innovation and everyday comfort. One side adeptly captures and preserves warmth, perfect for those colder mornings or when the night brings a chill. In contrast, the other side is proficient in expelling heat, an ideal choice for midday activities or when relaxation is the order of the day. Additionally, their weather-resistant nature offers an added layer of assurance against unexpected drizzles or splashes. Seamlessly transition between varying temperatures and activities by simply reversing these versatile sweatpants.

  • Wash it properly, it’ll last for years and years
  • Close all zippers
  • Use a detergent for waterproof clothing (Nikwax recommended)
  • Do not use softener
  • Cold water
  • Use delicate cycle
  • Do not tumble dry
  • Dry in shade
  • Do not iron
  • At Graphene-X, we uphold the highest standards of craftsmanship. Every product we offer comes with a lifetime guarantee, as we harness the unmatched strength and adaptability of graphene and other advanced materials to ensure unparalleled performance.
  • Most orders over $189 qualify for free shipping. Under that we normally charge 75% of the cost the courier charges to us.
  • Didn’t love it or could use a different size? Send it back within 30 days of delivery and we will fully refund it or send you a different size.

High Performance

Engineered using a sophisticated three-layer system: the inner layer incorporates a graphene-integrated fleece, heightening warmth retention capabilities. The outermost layer is designed with a proprietary nylon crafted specifically for efficient heat dissipation. Nestled between these layers is a high-efficacy membrane that serves as a steadfast barrier against wind and water. Together, they ensure optimal thermal regulation and elemental resistance.


Inherently versatile, these sweatpants offer a dual thermal response. While one side is formulated to capture and hold warmth, the reverse side efficiently releases heat. This makes them an ideal choice for varying temperatures, from brisk mornings to warmer afternoons, or during activities with differing intensity levels. The adaptability of these pants is a boon for those on the move or facing unpredictable weather scenarios.

Customer Reviews

Based on 37 reviews
Height: High-altitude hero || 6'0'' (183 cms) and over
Body status: Athletic
Size chosen: L
Fit: True to size
Comfortable, warm and suitable for everyday wear

I pair these with the matching jacket and can safely wear them to any event. A dress shirt or even a Graphene-X shirt (but not T-shirt) can make this neat casual to almost formal attire.

Rick Kent
Height: Medium-sized miracle || Between 5'7'' (170 cms) and 5'11'' (180 cms)
Body status: Athletic
Size chosen: M
Fit: True to size
Solid Graphene-X Product. Bit heavy.

Typical great Graphene-X quality. The pants are a bit thick and heavy compared to previous pants. But overall well worth the investment.

Jim Kramer
Height: High-altitude hero || 6'0'' (183 cms) and over
Body status: Dadbod
Size chosen: L
Fit: True to size
Like a HoodieX for my legs

These sweats are as functional and durable as my HoodieX I bought years ago on Kickstarter. They're heavier than cotton or poly sweatpants, ;ut in cold and/or wet weather, they keep me warm, yet are durable for use as work or hiking pants. I particularly love having these for colder weather RV trips.

What is Graphene?

One-atom thick carbon layers, known as graphene, make up graphite, familiar to many as the material in pencils. This material's attributes are unparalleled, outclassing steel in strength, diamond in hardness, and copper in conductivity. It also boasts superior electron mobility to silicon. The discovery of graphene was deemed so significant that it led to a Nobel Prize in Physics in 2010. We integrate our clothing fabrics with graphene for superior performance.

Weather resistant versus waterproof. What is the difference?
Benefits of a reversible pair of sweatpants