Lululemon Wunder Train vs. Wunder Under: Which one is better?

The Lululemon Wunder Train is a high-performance legging made from technical Everlux fabric for intense, sweaty workouts, offering a compressive and supportive feel. In contrast, the iconic Lululemon Wunder Under is designed for versatility and comfort, often made with softer fabric for yoga and everyday casual wear with a less compressive fit.

Here is everything you need to know to choose the right Lululemon legging for your needs.

Lululemon Wunder Train Leggings

The Wunder Train legging is Lululemon's go-to for high-intensity training. Built with the brand’s innovative Everlux fabric, it’s specifically engineered to handle heat and sweat by feeling cool on the inside, drying exceptionally fast, and offering substantial support with a compressive fit that sculpts and stays in place through every squat, lunge, and sprint.

• What it is: A supportive, compressive legging designed for high-impact workouts and training sessions.
• Key features: Built-in drawcord in the waistband for a secure fit, four-way stretch, highly breathable, and a cool, sleek feel.
• Price: $98 - $128
• Materials/Construction: Made from Everlux™, a durable, moisture-wicking blend of nylon and Lycra® elastane that is Lululemon’s fastest-drying fabric.
• Sizing/Fit: True to size with a tight, compressive "hugged" sensation. The fit is designed to support muscles and stay put during vigorous movement.
• Pros: Excellent durability and shape retention. Extremely fast-drying and breathable for sweaty workouts. Compressive fit feels supportive and sculpting. The waistband doesn't roll down.
• Cons: The compression can feel too intense for casual lounging. The technical fabric is less soft than others like Nulu or Luon. Higher price point than some other styles.

This is the ideal legging for athletes and gym-goers who need durable performance gear that can keep up with intense training sessions.

Shop this product: shop.lululemon.com/p/women-leggings/Wunder-Train-Leggings

Lululemon Wunder Under Leggings

The Wunder Under is one of Lululemon's most classic and versatile leggings, a long-time favorite for both yoga and all-day wear. Originally known for its buttery-soft Luon fabric, it became the benchmark for comfortable, multi-purpose leggings. While the fabric options have evolved, its core purpose remains: providing a comfortable, flexible fit that moves with you from the yoga mat to your daily errands.

• What it is: A versatile and comfortable legging for low-impact activities like yoga and everyday casual wear.
• Key features: Available in a wide variety of rises, lengths, and fabrics (currently Everlux, but historically Luon and Luxtreme), often with a wide, comfortable waistband.
• Price: $78 - $118
• Materials/Construction: Historically made from soft, cottony Luon fabric. Newer versions are often made with smooth Luxtreme or the more technical Everlux fabric, similar to the Wunder Train.
• Sizing/Fit: True to size with a gentle, less compressive fit. It offers a classic, comfortable leggings feel rather than intense compression.
• Pros: Very versatile for different activities and casual outfits. Less expensive than the Wunder Train. Softer feel, especially in legacy Luon versions. Available in a wide array of styles.
• Cons: Not ideal for high-sweat sessions as the original fabric isn't as quick-drying. Less supportive and compressive than a training-specific legging. The fabric selections have become inconsistent and harder to find.

Consider this legging your pick for all-around comfort, flexibility for yoga, and easy, casual style.

Shop this product: shop.lululemon.com/p/women-leggings/Wunder-Under-Leggings

Lululemon Wunder Train vs. Wunder Under Comparison

Materials & Feel

The biggest difference lies in the fabric. The Wunder Train exclusively uses Everlux, which has a cool, sleek feel on the outside and a brushed, soft texture on the inside. It’s technical, durable, and designed to manage sweat efficiently.

The classic Wunder Under was famous for its Luon fabric, which has a much softer, more cotton-like texture. It prioritizes coziness and comfort over sweat-wicking performance. However, recent Wunder Under versions are now also made in Everlux, making fabric a less clear differentiator, in this case, the decision comes down to fit and features like the drawcord in the Wunder Train.

Fit & Compression

Wunder Train offers a distinct compressive fit. It’s designed to hug your muscles, providing a supported, sculpted feel that stays locked in place. The high waistband includes a continuous drawcord, allowing you to tighten it so it never slips during high-movement activities.

Wunder Under leggings have a more relaxed fit. They provide a gentle hug without the intense compression of a training tight. This makes them exceptionally comfortable to wear for extended periods, but they don't offer the same level of locked-in muscle support as the Wunder Train.

Performance & Functionality

The Wunder Train is the clear winner for performance. Its Everlux fabric is Lululemon’s best for high-sweat environments, drying quickly and breathing well to keep you comfortable. The secure waistband and compressive nature make it ideal for running, HIIT, CrossFit, and weightlifting.

The Wunder Under, particularly in its original Luon form, excels in lower-impact settings. It’s perfect for yoga, stretching, walking, and lounging. While you can wear it to the gym, it won't handle sweat as well and may not feel as secure during explosive movements.

Price & Value

The Wunder Train is positioned as a premium performance legging, with prices typically ranging from $98 to $128. You are paying for the advanced fabric technology and durable construction built for intense wear.

Wunder Under leggings are generally more accessible, with prices from $78 to $118. They offer excellent value for someone looking for a high-quality, comfortable, and versatile legging for daily wear rather than specialized athletic performance.

Which One Should You Choose?

Both leggings are excellent products from Lululemon, but they serve different purposes.

Choose the Wunder Train if:

• Your primary activity is high-intensity training, lifting, or studio classes where you sweat a lot.
• You want a durable legging with a secure, compressive fit that sculpts your shape.
• A fast-drying, moisture-wicking fabric is your top priority.
• You need a waistband with a drawcord that will not roll or slip down, no matter how much you move.

Choose the Wunder Under if:

• You are looking for a versatile legging for yoga, lounging, and running errands.
• You prioritize all-day comfort and a softer, less restrictive feel.
• Your workouts are typically low-impact and you don't sweat heavily.
• You appreciate a classic style and want a more budget-friendly Lululemon option.

Frequently Asked Questions

What's the main difference between Wunder Train and Wunder Under?

The main difference is their intended use, which is dictated by fabric and fit. The Wunder Train uses highly technical, fast-drying Everlux fabric and has a compressive fit for intense training. The Wunder Under is a versatile, less compressive legging designed for comfort during yoga and everyday life.

Which is better for working out?

The Wunder Train is objectively better for intense, sweaty workouts. Its Everlux fabric handles moisture far better and its compressive design provides superior support. The Wunder Under is excellent for low-impact activities like yoga, pilates, or walking.

Do Wunder Train or Wunder Under pill?

The Wunder Train's Everlux fabric is highly durable and resistant to pilling, designed to withstand friction and frequent washing. The classic Wunder Under made with Luon fabric can be more prone to pilling over time, especially in high-friction areas between the thighs. Always wash them inside out on a gentle cycle and hang them to dry.

Are they true to size?

Yes, both styles generally run true to size. However, the fit is different. Choose your regular size in Wunder Train for a snug, compressive feel. For the Wunder Under, your regular size will give you a comfortable, gently hugged fit.

Which fabric is softer?

The original Luon fabric used for the Wunder Under is known for its distinctive cottony, buttery-soft feel and is generally considered softer to the touch than the sleek, technical Everlux of the Wunder Train.

Why is it hard to find Wunder Under leggings in Luon fabric?

Lululemon has phased out Luon for many of its core styles in favor of more technical fabrics like Everlux and Luxtreme. The brand's Align legging, made from Nulu fabric, has now largely replaced the Wunder Under as the go-to for a buttery-soft, "naked" sensation perfect for yoga and lounging.

Which legging is more flattering?

This is subjective and depends on your preference. The Wunder Train provides a very sculpted, compressive look that many find sharpening and secure. The Wunder Under offers a smoother, more natural silhouette thanks to its gentler compression and softer fabric.

Can an iPhone fit in the pocket?

Most standard versions of both the Wunder Train and Wunder Under do not feature side drop-in pockets for a phone. They typically have a small hidden pocket in the waistband for a key, card, or lip balm. However, Lululemon sometimes releases versions labeled with "Pockets" that include a larger side pocket.