The Lululemon Define Jacket costs around $128, lacks waterproofing, and requires hand-washing or delicate cycle care, yet millions of shoppers buy it in multiple colors. It is worth the high price tag if you prioritize a structured, contouring fit, premium hardware, and versatile styling that transitions easily from a morning Pilates class to running weekend errands. However, if you want a loose, oversized hoodie or a heavy-duty winter coat, you'll find better options elsewhere.
Few activewear pieces generate as much online debate as this form-fitting zip-up. Social media feeds are flooded with clips of shoppers testing its curve-enhancing seams and praising its signature thumbholes. Beyond the viral hype, understanding how the garment performs requires looking closely at its fabrics, sizing quirks, and long-term durability.
Understanding the Lululemon Define Jacket Lineup
The core design centers on a slim, hip-length silhouette featuring secure zippered pockets, a high collar, and "Cuffins" (fold-over finger covers). Lululemon offers several variations of the classic design, and choosing the right version determines whether you will love or regret your purchase.
- Classic Luon Define Jacket: Built from Lululemon's thick, cottony-soft Luon fabric (nylon and Lycra elastane). It offers heavy compression, creating a noticeable contouring and smoothing effect. It holds its shape well over years of wear, though it tends to attract pet hair and lint.
- Nulu Define Jacket: Crafted from the same buttery-light material used in the famous Align leggings. It feels weightless against the skin and offers high stretch, but it provides less structural compression than Luon and is prone to pilling if rubbed against rough surfaces.
- Cropped Define Jacket: A shorter iteration that hits near the top of the high-rise waistband. It cuts the traditional length for a trendier, streetwear-focused silhouette that pairs well with high-waisted leggings or wide-leg sweatpants.
- Hooded Define Jacket: Adds a casual hood to the classic frame. Keep in mind that the added fabric at the back makes it slightly heavier, and layering it under a tight winter coat can feel bulky around the neck.
Fabric Breakdown: Nulu vs. Luon
Choosing the right fabric depends entirely on how you plan to wear the jacket.
Luon is durable, heavier, and traps a bit more warmth. It acts almost like lightweight shapewear, pulling everything in and smoothing lines. If you live in a cooler climate or want a clean, sculpted look that hides minor bumps, Luon is the superior pick.
Nulu prioritizes comfort over compression. It feels like a second skin and breathes exceptionally well during indoor workouts. However, Nulu demands careful laundering. Washing it alongside items with Velcro or heavy hardware will ruin the smooth finish instantly.
Sizing Realities and Common Fit Issues
One of the most frequent complaints centers on sizing. The Define Jacket is engineered to fit like a second skin, meaning it runs very snug.
If you prefer a relaxed, effortless fit that allows for heavy layering underneath, you must size up. Sticking to your true size results in a high-compression, vacuum-sealed look. Shoppers with broader shoulders, larger arms, or a larger bust almost always need to size up one or two increments to prevent the armpits and chest from pulling tight.
- The Arm Constraint: The sleeves are notoriously narrow. If you lift weights and have muscular arms, the standard fit can restrict your range of motion.
- The Length Factor: The regular length hits right at the mid-hip, which flatters most proportions, but shorter torsos might find the hem bunching up when seated.
Quality of Construction and Hardware Details
At a $128 price point, minor details matter. Lululemon includes several functional design elements that justify part of the cost:
- The Zipper Pull Hair Tie: The metal zipper pull detaches easily to double as an emergency hair elastic—a surprisingly practical feature for active days.
- Cuffins: Fold-over mitts built into the sleeve cuffs keep cold wind out during chilly morning walks.
- Secure Storage: Deep, zippered side pockets keep phones and cardholders safe during movement.
Despite these perks, watch out for zipper slip during intense cardio. Because the zipper lacks a locking mechanism on some iterations, it can slowly slide down when you twist or bend aggressively.
Frequently Asked Questions
Can you actually work out in a Lululemon Define Jacket?
Yes, but context matters. It performs well for low-impact workouts, Pilates, barre, warm-ups, and outdoor walks. For heavy, sweat-heavy cardio sessions, Luon can trap heat quickly, so choosing Nulux or Nulu variants works better.
How do I prevent my Luon Define Jacket from pilling?
Turn the jacket inside out before washing it, use a cold, gentle cycle, and never put it in the machine dryer. Air-drying it flat preserves the fabric integrity and prevents the fibers from breaking down prematurely.
Does the Define Jacket shrink in the wash?
When washed according to instructions (cold water, air dried), shrinkage is minimal to nonexistent. Tumble drying on heat, however, will shrink the elastane fibers and ruin the signature stretch.
Is there a men's equivalent to the Define Jacket?
Lululemon doesn't make an exact direct equivalent under the same name for men, but their slim-fit zip-up training jackets and metal vent tech layers offer similar athletic silhouettes with more neutral proportions.
