Men's long underwear and base layers are built for one job: to be your base layer. In this collection you'll find base layer tops, pants and one-piece union suits, with a range of silhouettes to match how you like to dress.
Start with the top style you prefer. Choose a classic crewneck for a clean look, go with a turtleneck for more coverage at the neck, or pick a quarter-zip when you want an adjustable opening. You'll also see hooded base layer styles, plus base layer pants to round out your set. Many pieces are offered in different fabric weights, often labeled lightweight, midweight or heavyweight right in the product name.
Fit matters with long underwear. Use the Size & Fit information on each product page to confirm the intended fit and compare your measurements to the size chart. You'll find both Regular and Tall options in many styles, so you can get the length you want without sizing up.
Q: What types of pieces are included in men's long underwear and base layers?
A: This assortment includes base layer tops and pants, plus one-piece union suit styles. You'll also find a mix of top silhouettes such as crewnecks, turtlenecks, quarter-zips and hooded options.
Q: Are these men's base layers meant to be worn under other clothing?
A: Yes, base layers are designed to be worn as long underwear under the rest of your outfit. Check the Size & Fit section on the specific product page to confirm the intended fit for that item.
Q: Do men's base layers come in Regular and Tall sizes?
A: Yes, many styles are offered in both Regular and Tall. Select your size on the product page to see which length options are available for that specific item.
Q: What do lightweight, midweight and heavyweight mean on base layers?
A: They describe fabric weight options within the base layer assortment. Look for terms like lightweight, midweight or heavyweight (and sometimes numbers in the name) to help compare how different styles are labeled.
Q: Where can I find fabric content and care instructions for a specific base layer?
A: You'll find them on the individual product page under Fabric & Care. That section lists the fabric content and the recommended washing and drying guidance for that exact style.
This content was created with AI assistance and reviewed for accuracy and quality.
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