Lululemon The Mat 5mm vs 42 Birds The Robin: Which One Should You Buy?

Lululemon’s The Mat 5mm is a polyurethane top bonded to natural rubber, 71″ × 26″ and 5.2 pounds, for $118. 42 Birds’ Robin is a cork surface on a foam backing, 72″ × 26″ and 1.9 pounds, for $92. Both are 5 mm thick, but they deal with sweat, weight and wear in very different ways.

The Mat placed fourth of 19 in GearLab’s 2026 roundup at 81 out of 100 and took home its mixed fitness award. Nobody has put the Robin through anything similar, so for it we are relying on what 42 Birds says, how cork is known to behave, and reviews on 42birds.com.

GearLab’s comfort and support score for The Mat was a perfect 10, which only the Manduka PRO matched. Testers liked the springy padding and still found the mat stable, which is part of why it works for Pilates and floor-heavy workouts as well as yoga.

The Robin has no score to set against that. Most owners on 42birds.com are happy with how it cushions, though one says it feels a bit thin. If cushioning is your first priority, The Mat is the safer choice.

GearLab’s written review is enthusiastic about The Mat in sweat: the top soaks it up, it takes a lot of sweat before moisture builds on the surface, and testers still had excellent traction when it was soaking wet. Its separate grip table gives it only 6.5 for dry grip and 4.5 for wet, in the lower half of that table, and may lose grip with use is among its cons. We cannot fully square those.

42 Birds says the Robin’s cork grips harder with moisture and markets it for hot yoga. One reviewer on its site switched from The Mat 5mm after slipping on it in hot classes and reports the cork getting grippier with sweat. That is one review on the brand’s own store, and another reviewer there rules the Robin out for hot yoga, so treat it as an anecdote.

The mechanics are clearer than the scores. The Mat pulls sweat into its top, while cork leaves it on the surface, which helps grip until the sweat starts to pool. For the grippiest hot yoga surface, GearLab points to the Manduka GRP Adapt 2.0 instead, and our Lululemon vs GRP Adapt 2.0 comparison sets the two side by side.

We list The Mat at 5.2 pounds, and GearLab weighed its test mat at 5.9, calling it a bit heavier than average but easy to carry because it rolls up tightly. The Robin comes in at 1.9 pounds and, per 42 Birds, rolls up about 4″ across.

If you walk or ride to class, fly with your mat, or climb stairs to a studio, that gap favors the Robin every time, and its light weight comes up again and again in its reviews. For a mat that travels by car or never leaves the house, three pounds rarely matters.

The underside of The Mat is textured natural rubber, and you can practice on it for a different grip. GearLab suggests trying both and choosing by the day’s flow, and it lists the double-sided design among the pros behind its mixed fitness award.

The Robin is single-sided. Its foam base is there to hold the floor, and 42 Birds tells you to practice cork side up. For yoga that is no loss, but for a mat that also has to handle Pilates, core work and the odd home workout, The Mat covers more.

The absorbent top is also The Mat’s maintenance problem. GearLab notes it soaks up oils and dirt, stains easily, and needs periodic deep cleans, and suggests a darker color if you want it to look fresh longer. Its care score was 7 out of 10.

Cork asks for less. The routine 42 Birds gives is a wipe with a damp cloth, gentle products only, and drying it out fully before you roll it, and the brand says cork fends off mold, mildew and odor naturally. It is not zero effort, though: one owner advises cleaning it well before the first session and after each one.

GearLab puts The Mat’s usual lifespan at more than five years, and several practitioners told its testers they got five or six years of regular practice from theirs, with moderate wear and some grip loss in the spots that take the most use. Lululemon’s Quality Promise applies, with no fixed term.

Nobody has published long-term results for the Robin. 42 Birds offers no warranty, but it will refund a Robin returned within 30 days even if you have sweated on it, so the first month at least is covered.

The rubber in The Mat’s base carries FSC certification, a genuine sourcing credential, but GearLab lists contains latex first among its cons. Anyone with a latex allergy should rule it out.

The Robin has no rubber at all. It pairs cork with a latex-free foam that 42 Birds describes as fully recyclable and free of PVC, which makes it the pick of these two for latex-sensitive buyers.

The Mat costs $118 and the Robin $92, a $26 difference. Neither is an Amazon buy: Lululemon does not sell The Mat there, and the Robin’s Amazon listing is stale, with specs from an earlier version. Get The Mat from Lululemon’s site or one of its stores, which lets you try one before you pay, and the Robin from 42birds.com.

Some review sites, GearLab included, still show The Mat at $98; Lululemon charges $118. For more room, The (Big) Mat is 84″ × 28″, and the Robin also comes in an 85″ Extra Long for $108.

Buy The Mat if cushioning matters most, if you mix yoga with Pilates or home workouts, or if you want to try a mat in a store before buying. GearLab rates its comfort as highly as any mat it tested. Pick a darker color and expect to deep clean it now and then.

Buy the Robin if you would rather carry under two pounds, need a latex-free mat, or want a surface that stays fresh with a wipe. It also costs $26 less. If cork appeals but you want it heavier and firmer, our Lululemon vs Yoloha Unity Pro comparison covers that option.