Men's Long Johns

These Long Johns come in a variety of sizes, from XS to XXL, and are available in multiple colors to suit your style. Premium, breathable cotton with a touch of elastane ensures durability and ulmtimate comfort. The snug fit around the legs make them ideal for layering under clothing or wearing solo at home. With a focus on warmth, style, and function, our Long Johns are essential thermal underwear. Add a t-shirt, short or long-sleeves to complete your look. Ron Dorff elevates the traditional Long John's upgraded with a contemporary design. Featuring a tailored fit, these Long Johns are made for men who appreciate style and performance. The addition of elastane gives the fabric just the right amount of stretch, while the cotton ensures softness and breathability. These Long Johns are perfect for all sports activities or simply relaxing at home. Available in a range of sizes and colors, they are the perfect addition to your wardrobe. Discover our men's pajamas and our men's loungewear collection, designed to be worn season after season.

The term long johns originates from the late 19th century, named after the American boxer John L. Sullivan, who was known for wearing a type of long underwear similar to today’s long johns and leggings bottoms. These garments were designed to provide warmth and comfort in cold temperatures, particularly during physical activities. The name long johns soon became associated with these full-length undergarments, which covered the legs and torso, offering a practical solution for staying warm during winter months.

Over time, the term has endured and is now commonly used to refer to thermal underwear or base layers worn under clothes for extra insulation. Despite their origins in the boxing world, long johns have evolved into essential winter gear, often paired with leggings for added warmth and moisture-wicking performance during cold weather.

How to choose the right fit and size?

Choosing the right fit and size for men's long johns involves a few key considerations to ensure comfort and performance. Here’s how to get it right:

1. Know Your Measurements: Start by taking your waist and hip measurements, as these are the most important for selecting the correct size. If you're unsure between two sizes, it's generally better to size up, especially for long johns that offer a looser fit for easy layering.
2. Consider the Fit: If you're looking for more warmth and comfort, choose a fit that offers more room without being too tight. A looser fit allows for better layering underneath your pants or shell. On the other hand, a snug fit can provide better moisture control and warmth by trapping body heat close to your skin.
3. Fabric Choice: Fabrics mixing cotton and synthetic materials offer natural stretch and moisture-wicking properties, which can help with fit. If you’re sensitive to fabric, choose options that are soft against the skin. Also, check if the garment includes features like flatlock seams to reduce chafing.
4. Check Sizing Charts: Different brands may have slight variations in sizing, so refer to the specific sizing chart for Ron Dorff's long johns. Pay close attention to measurements for waist, hips, and inseam, and be sure to consider your intended use—whether you’re wearing them for casual use, outdoor activities, or layering under ski pants.
5. Consider Your Activity Level: For activities in cold temperatures or snow, you may want a thicker, midweight option for extra warmth. For lighter use or cooler days, a lighter base layer will do the job.

What's the difference between men’s long johns and thermals?

Thermals refer to all types of clothing designed to retain heat, including tops, bottoms, and full-body suits made from fabrics like cotton, polyester, and wool blends. Both thermals and long johns are base layer bottoms intended to keep the body warm in cooler conditions. Long johns, however, specifically refer to the pant of a thermal underwear set. While long johns are a type of thermal underwear, thermals can include long-sleeve tops or even full sets designed for head-to-toe warmth in cold weather.

More warmth for cold weather comfort

Wearing long johns enhances your layering system by adding an extra layer of insulation that helps maintain a steady body temperature throughout the day. As a lightweight base layer, they trap heat close to the skin while allowing full freedom of movement. Ideal under casual or sportswear, long johns provide discreet, consistent warmth in cooler conditions and cooler temperatures without adding bulk.

Lightweight comfort with fabric weight, cotton, and synthetic blends

As base layer bottoms, our Long Johns remain one of our best sellers thanks to their perfectly balanced fabric weight made from cotton and synthetic materials. Ideal for a ski resort or everyday cold weather, they offer a soft feel while being slightly thicker for dependable warmth. Designed in men's sizes with a durable construction, they keep you comfortable in changing weather and stay easy to care for since they are fully machine washable. As a reliable base layer, these cotton-rich bottoms provide long-lasting comfort and performance throughout the season.

Washing and caring for men's long johns

Caring for men's long johns ensures they stay durable, comfortable, and perform well during cold weather activities. Here's how to wash and care for them properly:

1. Check the Label: Always read the care instructions specific to your garment. Most men's long johns made from merino wool, cotton, synthetic fibers, or synthetic blends, such as Ridge Merino, are machine washable, but there can be variations.
2. Machine Wash with Care: Use a gentle cycle with cold or lukewarm water to prevent shrinkage and preserve fabric quality. For merino wool and synthetic blends, choose a wool or delicate setting. Avoid hot water, which can affect fabric integrity and cause shrinking.
3. Use a Mild Detergent: Opt for a detergent designed for wool or delicate fabrics. Harsh detergents can damage the fibers, so avoid bleach or fabric softeners. Wool detergents also help maintain the natural odor control of merino wool.
4. Dry Properly: Avoid wringing or twisting the fabric, as it can distort the shape. For best results, lay the long johns flat to dry, away from direct sunlight or heat sources. They dry quickly, releasing moisture from wet fabric while maintaining their shape and preventing damage. Never tumble dry on high heat, especially with merino wool.
5. Storage: Store your long johns in a cool, dry place. For added protection, keep them in a breathable garment bag if you're storing them long-term, especially after skiing or outdoor activities, to maintain their shape and avoid wear from exposure to moisture or dirt.
6. Avoid Frequent Washing: Over-washing can wear out the fabric. Instead, try airing them out between wears to keep them fresh. The natural fibers in merino wool or cotton, for instance, naturally resist odor and can be worn multiple times before washing.

By following these steps, your long johns will maintain their warmth, softness, and durability, whether you're wearing them for skiing in the Eastern Sierra, outdoor activities, or casual use on cold days.