Retrospec Solana 1″ vs Solana 1/2″: Which One Should You Buy?

Retrospec sells the Solana as a pair. Same 72″ × 24″ footprint, same NBR foam, same ribbed texture on both faces, same 13 colorways at last count. The only difference on the spec sheet is how much foam is under you: a full inch or half of one, for $39.99 and $24.99.

That sounds like a simple more-is-better decision and it is not. An inch of soft foam changes how the mat behaves under a standing foot, and for most people doing actual yoga the thinner one is the better mat. The thicker one is better at a different job.

NBR foam is soft and compressible. Stand on the 1″ Solana in warrior three or tree and your foot sinks in, then keeps adjusting as you wobble. The mat is absorbing the small corrections your ankle is trying to make against the floor.

The 1/2″ version has the same problem to a smaller degree, which is the point. At half an inch you still feel where the floor is. This is why studio mats sit between 4 and 6 mm rather than at 25, and it is worth knowing before you buy thickness for its own sake.

If your practice is mostly standing work, vinyasa, or anything where balance matters, treat the inch as a downgrade rather than an upgrade. Owners who came to the 1″ from a normal yoga mat say the same thing in reviews, usually after a few weeks of it.

Kneeling, lying down, and anything on your back or your elbows. On a hard floor a full inch of foam is genuinely comfortable in a way a yoga mat never is, and that is the reason people buy it.

Physio exercises, core work, stretching, Pilates on the floor, sit-ups against a hardwood floor: the 1″ handles all of it better than the 1/2″, and better than almost any purpose-built yoga mat. Sensitive knees are the single most common reason we would point someone at it.

NBR is a nitrile rubber foam, the same family of material used in camping pads and gym flooring. It is closed cell, so sweat sits on top rather than soaking in, and it wipes clean with a damp cloth.

It is not sticky. Grip on both Solanas comes from the ribbed pattern pressed into the surface, which works with dry hands and stops working when your palms are wet. Neither mat is a hot yoga mat, and neither is sold as one.

The two share a surface, so there is nothing to separate them here. The ribbing gives your hands something to push against on a clean dry floor and gives up once there is moisture involved.

We should be straight about the evidence: GearLab does not test any Retrospec mat, so there is no independent grip number for either Solana the way there is for a Manduka or a Gaiam. What we have is the material, the texture, and a large pile of owner reviews that mostly complain about the foam denting rather than about slipping.

4 pounds against 3. Neither is heavy, and both come with a carry strap.

Rolled diameter is the real difference. An inch of foam rolls into a cylinder roughly the size of a sleeping bag, which is awkward in a car footwell and worse in a studio cubby. The 1/2″ rolls to something closer to a normal yoga mat. If the mat has to live somewhere between sessions, measure the space first.

Soft foam takes a set. Knees, elbows and heels leave shallow impressions that mostly recover overnight and gradually stop recovering. That is the standard failure mode for this material at this price, on either thickness.

The 1″ has more foam to compress, so the dents are deeper and more visible, though it also takes longer to bottom out. Retrospec covers both for 6 months against defects, with a 30 day return window on top, and normal foam compression is not a defect.

New NBR foam off-gasses. Both Solanas arrive with a chemical smell that owners describe as strong for a few days and gone within a week or two if you unroll the mat and leave it somewhere airy.

The 1″ has twice the material, so it takes longer to clear. If you are sensitive to that, unroll it in a garage or a spare room rather than the room you practice in.

List prices are $39.99 for the inch and $24.99 for the half, and both hold those numbers reliably rather than swinging around. Check the 1″ on Amazon and check the 1/2″ before you order, since the colorway you want is sometimes priced differently from the rest.

For what it is worth, $15 is close to the entire price of a decent thin yoga mat. If you want both cushion and a usable yoga surface, buying the 1/2″ and a folded blanket for kneeling costs less than the inch and works better.

Buy the 1/2″ Solana if you are doing yoga. Half an inch is already more cushion than a studio mat gives you, and it leaves you enough contact with the floor to balance on one leg without fighting the surface.

Buy the 1″ Solana if your knees are the problem you are solving, or if the mat is for floor work and stretching rather than standing poses. It is a good exercise mat and a mediocre yoga mat, and it is priced like the former.

If neither sounds right, a 6 mm PVC mat sits between them: see the Gaiam Premium against the 1/2″ Solana for that comparison.