Primal Soles are made out of three layers: a top layer of natural cork, a middle layer of anti-bacterial memory foam and a bottom layer of recycled cork & foam. 

Unlike all other insoles on the market, Primal Soles are specifically designed so they can be 100% recycled. By using cork, we ensure that each sole can be recycled and transformed into that bottom layer. 

Cork is a natural material that is comfortable, light and sustainable. It can also be recycled and reused. Visit our Back to the Source section to know more. 

Primal Soles are perfect for everyday, office and outdoor shoes. Make sure to choose the right fit according to the product description. For example, thinner insoles like the “Low Arch Bananas” edition are best for office shoes that naturally have a tighter fit. Please contact us if you have additional questions on the best fit.

We recommend sizing up if you're not sure which size to choose. You can always trim it down a little by putting any existing insole over the Primal Soles and cutting along its line.

• Sizes 35 - 40 Low Arch Bananas are 4.6 mm on the front and go up to 4.7 mm on the back of the heel
• Sizes 41 - 47 Low Arch Bananas are 4.6 mm on the front and go up to 4.8 mm on the back of the heel
• Sizes 35 - 40 High Arch Cortiças are 4.7 mm on the front and go up to 4.8 mm on the back of the heel
• Sizes 41 - 47 High Arch Cortiças are 4.7 mm on the front and go up to 4.9 mm on the back of the heel
• Sizes 35 - 40 Clouds are 4.3 mm on the front and go up to 4.4 mm on the back of the heel
• Sizes 41 - 46 Clouds are 4.3 mm on the front and go up to 4.5 mm on the back of the heel

Thickness is measured directly out of the box so expect a more even alignment over time and usage

You can recycle your Primal Soles by sending them back to us at the end of its life cycle.

If you opted for the subscription model, then in your next order you will automatically get a return envelope.

Just enter your 4-digit order number on the "Recycle" tab on the website and you'll be able to receive a free shipping label.

Primal Soles are made in the north of Portugal, an area known for its generations of expertise in footwear manufacturing.

We offer returns and exchanges for 30 days on items purchased through our website. For more information visit Refund Policy.

• Cork is Soft to the Touch: the natural texture of cork combines softness and flexibility to the touch to make it the ideal pillow for the feet while providing comfort and support
• Cork provides Excellent Thermal Regulation: the air inside the abundance of cell membranes makes cork an excellent thermal regulator leading to low levels of thermal conductivity as compared to any other industrial or technological material
• Cork is Naturally Anti-Bacterial: due to its suberin compound cork naturally repels small particles and resists toxin absorption and mold, making it the perfect material to remain odorless on the feet
• Cork is Moisture Wicking: impermeable to liquids and gasses, cork does not absorb moisture such as sweat due to its suberin and ceroids contained in its cell walls, making it the perfect material to remain dry on the feet
• Cork is Extremely Light: since cork consists for more than 90% out of air it makes it extremely lightweight, and due to its honeycomb structure of cells filled with an air-like gas, it is elastic, shock absorbent and resilient
• Cork has High Impact Resistance: due to its honeycomb structure, cork has a high impact resistance as compared to other hard surfaces. Its resistance to impact or friction gives it a high friction coefficient