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ALPHX Comfort Class Union Pant - Modern Fit - Moss Green |

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ALPHX Every Day Comfort Union PantLayer or Lounge?  You decide.

We designed our union pants with the same premium, ethically sourced material as our underwear, and we don't skip on any of the details either.  Our signature 120° button-front fly is angled for easy to open, secure when closed functionality.  2 flat back-seams follow the contours of your seat preventing uncomfortable wedgies.  They have a 30.5-inch inseam (size medium) and are narrow at the ankle, making them perfect for wearing as a base layer under clothes. Plus, they're lightweight, cozy, and breathable, so you won't sweat while wearing them under a pair of pants or hanging out at home. 

Our Contemporary MDRN (Modern) Fit is available in sizes XS-XXL, and our ATHLTC (Athletic) Fit comes in S-XL with an additional inch of leg circumference for guys with large or muscular thighs.

We encourage you to use our personal FIT FINDER to help you find the right fit for you.

We think it's the most comfortable underwear you will ever wear, but you be the judge: give us a try risk-free with our Be Assured Guarantee.




    Be Comfortable

    Our Underwear is understated, but never basic. ALPHX is designed for everyday comfort and we think, stylish enough for special occasions too.  You be the judge.  Try a pair risk free with our Be Assured Guarantee.

    We start with materials that are soft to the touch:  lightweight breathable natural cotton and modal made from beech tree bark pulp. (Doesn’t sound soft, but believe us when we say it is.) Then, for strength, stretch, and recovery, we combine these two materials with just the right amount of elastane. Our tonal waistband is obnoxious free subtly embossed with our signature ALPHX logo.

    • 56% Cotton, 38% Modal, 6% Elastane
    • Ethically made in Sri Lanka
    • 94% Sustainable. 100% Comfortable
    • 155 GM lightweight, breathable cotton
    • 4-way stretch for movement and recovery
    • Double-lined contoured pouch for comfortable support
    • Back rise slightly higher than front to prevent ride-up
    • 1.5" soft contoured waistband follows your natural curve to prevent pinch and roll down
    • Tear-away labels for tag free comfort
    • Locker loop for convenience


    Care Instructions

    • Machine wash cold with similar colors
    • Do not bleach
    • Tumble dry low
    • Do not iron
    • Do not dry clean
    • Do not use fabric softener


      Peace of Mind, Guaranteed


      At ALPHX, we believe shipping costs shouldn't come between us. That's why we offer free shipping on every purchase. Restrictions apply.

      Free Shipping

      • Free Shipping on All Orders: Every order within the U.S. ships for free.
      • Free Shipping on All Returns: Subject to our return policy, all returns within the U.S. are shipped free of charge.
      • Shipping Method: Domestic orders are shipped via USPS First Class, with tracking information provided.

      Continental U.S.

      Estimated Shipping Times USPS First Class

      East Coast 2-3 Days
      Midwest 3-4 Days
      West Coast 4-5 Days


      These estimates are based on typical delivery times and may vary due to factors such as weather conditions, holidays, and other unforeseen events. For the most accurate and up-to-date information, it's always best to check directly with USPS through their website or customer service.


      We want you to give ALPHX a risk-free try. If you find that our product isn't for you (though we’re confident you’ll love it), your purchase is on us. Here's how it works:

      • First Purchase Only: The Be Assured guarantee applies to your first underwear purchase from
      • Multiple Items: If you purchase more than one pair, try on just one before removing the others from their packaging. If the first pair isn’t right, the rest can still be returned under our standard return policy.
      • Refund Process: If ALPHX isn’t a fit for you, we'll happily issue a refund. We'd love to hear your feedback to help us improve.
      • One Use Per Household: The Be Assured guarantee is limited to one use per household and must be claimed within 30 days of the original purchase date.

      Request a Be-Assured Refund


      ALPHX underwear in their original, unworn, and unwashed condition may be returned for a refund up to 30 days after the original purchase date. We'll even cover the shipping cost.

      Request a Return Label


      We understand the hassle of ordering the wrong size. That’s why we offer fast, free exchanges.

      • Easy Exchanges: If you need a different size or color, we’ll send out your replacement items immediately, without waiting for your return to be processed.
      • Price Protection: The replacement items will be shipped at the same price you paid for the original order.
      • Shipping Costs Covered: Both the return and the new items ship free of charge.

      ALPHX underwear in their original, unworn, and unwashed condition may be exchanged for an alternate size or color up to 30 days after the original purchase date.

      Experience ALPHX with confidence, knowing that we’ve got your back every step of the way. Thank you for choosing ALPHX!

      Request an Exchange


      • We have enhanced our International Shipping Process to provide faster service and an improved overall experience. Our new process includes collecting prepaid duties where applicable to avoid unnecessary customs delays.

        Duties, Taxes, and Shipping Costs

        You will be charged the appropriate duties and taxes where required, in addition to the shipping cost for DHL’s Standard International Service. These charges will be clearly displayed at checkout.

        Delivery Estimates and Tracking

        At checkout, you will be shown the estimated delivery time as quoted by DHL. For most locations, the estimated delivery time is between 6-12 business days. A tracking number will be provided in your confirmation email for you to monitor your shipment.

        Free Shipping on Orders of $75.00 USD and Above

        Customers shipping orders to the following countries will enjoy free shipping on orders of $75.00 USD or more: Australia, Austria, Belgium, Bosnia & Herzegovina, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, Germany, Gibraltar, Greece, Guernsey, Hungary, Iceland, Ireland, Italy, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Macedonia, Malta, Moldova, Mexico, Monaco, Montenegro, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the U.K.

        Orders up to $74.99 USD will be charged a flat rate of $10.00 USD.

        Discounted Shipping Rates

        Customers shipping to the following countries will enjoy discounted rates from DHL. Rates and estimated delivery times will be shown at checkout: Algeria, Angola, Anguilla, Antigua & Barbuda, Argentina, Armenia, Aruba, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belize, Benin, Bermuda, Bhutan, Bolivia, Botswana, Brazil, British Virgin Islands, Brunei, Burkina Faso, Burundi, Cambodia, Cameroon, Cape Verde, Caribbean Netherlands, Cayman Islands, Chad, Chile, China, Colombia, Comoros, Cook Islands, Costa Rica, Curaçao, Cyprus, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eswatini, Ethiopia, Falkland Islands, Fiji, French Guiana, French Polynesia, Gabon, Gambia, Georgia, Ghana, Greenland, Grenada, Guadeloupe, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong SAR China, India, Indonesia, Israel, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Lesotho, Macau SAR China, Madagascar, Malawi, Malaysia, Maldives, Martinique, Mauritania, Mauritius, Mayotte, Mongolia, Montserrat, Morocco, Mozambique, Namibia, Nauru, Nepal, New Caledonia, New Zealand, Nicaragua, Nigeria, Niue, Oman, Pakistan, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Qatar, Réunion, Rwanda, Samoa, São Tomé & Príncipe, Saudi Arabia, Senegal, Seychelles, Sierra Leone, Singapore, Solomon Islands, South Africa, South Korea, Sri Lanka, St. Barthélemy, St. Helena, St. Kitts & Nevis, St. Lucia, St. Martin, St. Vincent & Grenadines, Suriname, Taiwan, Tanzania, Thailand, Timor-Leste, Togo, Tonga, Trinidad & Tobago, Tunisia, Turkey, Turks & Caicos Islands, Tuvalu, Uganda, United Arab Emirates, Uruguay, Uzbekistan, Vanuatu, Vietnam, and Zambia.

        Additional Charges

        The customer is responsible for any additional taxes and duties owed.

        Be Assured Guarantee

        Our Be Assured Guarantee applies to international orders as well. ALPHX underwear in their original, unworn, and unwashed condition may be returned for a refund up to 30 days after the original purchase date. Customers are responsible for all return shipping costs.

        Transport Delays and Expedited Shipping

        Delivery times are estimates only and may be subject to delays beyond our control. You will also be given options for expedited shipping at checkout.

        We are committed to providing the best possible service and ensuring your satisfaction with every order. Thank you for choosing ALPHX!




        Bennett is 5’ 9” and is wearing an XS MDRN FIT Union Pant

        Diego is 5'10” and is wearing a Small MDRN FIT Union Pant

        Brian is 6’ and is wearing a Medium MDRN FIT Union Pant

        Denis is 5'10” and is wearing a Large MDRN FIT Union Pant

        David is 5'10" and is wearing an XL MDRN FIT Union Pant

        Eric is 6'5" and is wearing an XXL MDRN FIT Union Pant

        Nunzi is 5'10” and is wearing an ATHLTC FIT Union Pant

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        FREE Shipping on all orders over $50Buy 3 get 20% offPay in 4 instalments available at checkoutBuy 5 get 25% off

        Other Colors Available

        ALPHX Comfort Class Union Pant - Modern Fit - Midnight Black |
        ALPHX Comfort Class Union Pant - Modern Fit - Midnight Black |
        ALPHX Comfort Class Union Pant - Modern Fit - Midnight Black | $60.00
        ALPHX Comfort Class Union Pant - Modern Fit - Moss Green |
        ALPHX Comfort Class Union Pant - Modern Fit - Moss Green |
        ALPHX Comfort Class Union Pant - Modern Fit - Moss Green | $60.00
        ALPHX Comfort Class Union Pant - Modern Fit - Frost White |
        ALPHX Comfort Class Union Pant - Modern Fit - Frost White |
        ALPHX Comfort Class Union Pant - Modern Fit - Frost White | $60.00
        Rating: 5.0 out of 5