The Jade Harmony yoga mat is made with natural rubber, without PVC or other toxic materials. It's 3/16" thick, and comes in a variety of colors and lengths.
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Pro Provides decent support for your knees
At 3/16” thickness, the Harmony mat is not as thick as some other yoga mats (like Jade Fusion), but it still cushions your knees a lot more than lower-quality alternatives. The Jade Harmony yoga mat is likely to be soft enough for people who don't have any pre-existing problems with their knees.
Pro Good for hot yoga
The Jade Harmony is made of open-cell rubber, which gives it the grip that's great for wet conditions such as hot yoga. The Harmony will dry out if left in direct sunlight or in the back of your car uncovered on hot days, which will ruin the grip and shorten the lifespan of your mat considerably.
Pro Socially/environmentally conscious company
Jade Yoga plants a tree for every mat sold, makes their mats in the US, and supports a variety of great causes.
Con Rubber smell
The Harmony is made of natural tree rubber, so it will smell like rubber at least for the first few uses. It does air out after a while, but if you're really sensitive to smells, this mat might not be for you.
Con Biodegradable means shorter life span
The Jade Harmony yoga mat is biodegradable, and after about a year of every-day use you will start to notice grooves in the mat in the spots where your hands and feet usually are, and bits of rubber will start to come off. If you want a yoga mat that lasts for decades, then you should consider getting a non eco-friendly version.