Tuli's The X Brace +PLUS is a simple yet highly effective elastic foot support. Its beauty and effectiveness lie in its ease of use, simplistic design, and incredible success in providing arch and heel support.

The X Brace +PLUS offers an added strap to ensure optimal position for all-day wear. No adjusting is necessary.  This design, similar to traditional taping, eliminates the need for expertise, time, and tape. Tuli's The X Brace +PLUS arch support reduces the strain on the plantar fascia by helping distribute the weight evenly across the foot.

• Targeted support for the plantar fascia
• Low-profile design with an additional strap
• Comfortable to wear with any style of footwear

We recommend wearing The X Brace +PLUS initially for a few hours daily and gradually increasing up to 12 hours daily as needed. It may be worn during or after activities - with or without shoes or socks. Do not wear it while sleeping.

Tuli's® The X Brace® and The X Brace +PLUS™ is available in multiple sizes. Use the chart below to determine the correct X Brace size according to your U.S. shoe size.

To find the best support measure your arch circumference right below ball of foot and follow chart arch measurements below. 

Please Note: If your arch measurement is different from your shoe size select the appropriate size for your arch measurement. 

Size Chart:

Children under the age of 16 that are wearing adult size shoes inevitably have a smaller arch.  If your child’s adult shoe size lands right on the edge of one of our adult sizes the smaller X Brace is usually the correct choice.

If you have an extremely wide or narrow foot and would like additional information about sizing please don’t hesitate to contact us.

Why does my foot hurt when wearing the Tuli's The X Brace +PLUS?
There is a normal break-in period whenever a new The X Brace +PLUS is applied. The foot is very sensitive to touch, and pain can be present when new things apply pressure to the foot. The muscles of the foot are also sensitive and with The X Brace’s revolutionary concept of helping the foot to work better, these muscles can cramp if they are not used to performing as they should. If cramping/pain occurs, remove the brace immediately and give your foot 15 minutes rest, then return The X Brace +PLUS to your foot and resume activity.

Will the Tuli's The X Brace +PLUS fit in my shoe
Absolutely. The Tuli's X Brace’s low-profile design will fit into any shoe or cleat, and is comfortable to wear with any kind of footwear, flip-flops and high heels included.

Why should I choose The Tuli's The X Brace +PLUS instead of a sole insert?
The Tuli's X Brace +PLUS offers the user something more than what the traditional treatments of foot pain, like a sole insert, ever could. An insert in your shoe provides increased padding and support for your foot, keeping your foot supported and molded correctly. The Tuli's X Brace +PLUS focuses its pressure on the connective tissues and tendons in the middle of your foot, because that’s where most foot pain originates. Another distinct advantage that The Tuli's X Brace +PLUS has is its compatibility. The X Brace +PLUS fits in any shoe, whether it’s a high heel or cross-trainer, and it can be taken with you from shoe to shoe or simply worn barefoot. This type of support gives you the assurance that whether you’re on your feet or off, your pain is being addressed.

How often should I replace my Tuli's The X Brace +PLUS?
It is estimated that The Tuli's X Brace +PLUS has approximately 200 hours of effective life before it will need to be replaced. If you’re using your X Brace +PLUS during everyday workouts (4 + hours in the gym per day, five days a week), we recommend having two pairs of braces that you can wear on alternating days. This will allow the elastic to dry out and recover completely before being worn again, extending the life of both pairs.

Can I wash the Tuli's The X Brace +PLUS?
We definitely recommend that you wash your Tuli's X Braces. If you’re rotating between two pairs, wash them once a week. Hand or machine wash (gentle cycle) in cold water with mild clothing detergent such as 2Toms StinkFree Sports Detergent and air dry.

HSA/FSA Questions:

Why can’t I see Flex as a payment method?
If you can't see "Flex | Pay with HSA/FSA" as a payment method, you may either be logged into ShopPay in which case you'll need to select "checkout as guest" or you may have a subscription purchase in your cart. Please make sure you're selecting a one-time purchase and checking out as a guest in order to use your HSA/FSA card.

What is Flex and what is their relationship with Medi-Dyne?
Medi-Dyne has partnered with Flex to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA). This means you can now use your HSA or FSA debit card to buy Tuli's The X Brace +PLUS with pre-tax dollars, resulting in net savings of 30-40%, depending on your tax bracket.

How do I pay with my HSA or FSA card?
To use your HSA or FSA debit card, add products to your cart as usual. At checkout, select “Flex | Pay with HSA/FSA” as your payment option, enter your HSA or FSA debit card, and complete your checkout as usual. If you don’t see “Flex | Pay with HSA/FSA,” you may be in Shop Pay. Select “checkout as guest” to view more payment options.

What if I don’t have my HSA/FSA card available?
If you don’t have your HSA or FSA card handy, still select “Flex | Pay with HSA/FSA” as your payment method. Enter your credit card information and Flex will email you an itemized receipt to submit for reimbursement.

Why can’t I see Flex as a payment method? (For Shopify Partners only - please remove this italicized blurb when adding to FAQs)
The key here is to make sure you are logged out of ShopPay. One of the easiest ways to do this is to go through checkout in an incognito window.

Why is my HSA/FSA card being declined?
HSA/FSA cards are debit cards, and the most common reason for declines is insufficient funds. Reach out to your HSA/FSA administrator to confirm your balance.

I submitted my Flex itemized receipt for reimbursement and my FSA requires more information.
Please forward us the request from your FSA, and we will work with the Flex team to issue you a new receipt.

Help! I didn’t receive an email from Flex with my itemized receipt and/or letter of medical necessity. What should I do?
Please check your spam folder, as sometimes emails from notifications@withflex.com may be automatically filtered as spam by some email service providers. If you still can’t find it, please email support@withflex.com and let them know the email address associated with your order.

I would like to use multiple HSA/FSA cards to pay for an item. Can I do that?
No, unfortunately, this isn't a supported feature right now. If there are insufficient funds in a single HSA or FSA account, you can instead enter a credit card on the Flex checkout page. You will receive an itemized receipt and/or Letter of Medical Necessity from Flex, which you can submit for reimbursement.

My purchase receipt from Medi-Dyne has a different number than what my FSA was charged. How can we resolve it?
Thanks for reaching out, and apologies for the discrepancy. We'll review the charges and get back to you with details of the likely refund shortly.

Is sales tax covered by HSA/FSA funds, or is it treated separately?
Sales tax for eligible items is also covered by HSA/FSA funds. If the customer has a split cart, the tax will be divided among the cards based on the items.

HSA/FSA Reimbursement Questions:

My HSA/FSA Claim was denied. What should I do?
We strongly recommend checking with your HSA/FSA provider to see if a purchase is eligible prior to completing the purchase. However, if you believe your claim has been wrongly denied, please send over any response from your HSA/FSA provider to us so we can share it with Flex and receive guidance on the next best steps to take. Please note that employer-sponsored FSAs can determine what products are eligible beyond the IRS’s guidelines, so it’s extremely important to check prior to purchase.

Can a customer purchase a product now and apply for FSA reimbursement in the next calendar year?
The ability to apply for FSA reimbursement in a future calendar year depends on the policy of the specific FSA provider. Most FSA administrators require that the purchase be made during the time of coverage. For example, if the FSA coverage is for 2025, all purchases typically need to be made and/or submitted for reimbursement within that coverage period.

However, some administrators may have more flexible rules regarding the timing of when the expense occurred. We recommend that customers review their plan policy to confirm the details.

Note: Health Savings Accounts (HSAs) are different and generally allow for reimbursement at any time, even in future years.

Can old (non-Flex) customers use their order confirmation email to apply for HSA/FSA reimbursement?
Unfortunately, for purchases made without using Flex in the checkout to receive an itemized receipt, it may be difficult to apply for reimbursement.

For Health Savings Accounts (HSAs), consumers can use an itemized receipt for reimbursement anytime after they have made the purchase, even if it is many years later.

For Flexible Spending Accounts (FSAs), most accounts require that the purchase was made in the calendar year during which the consumer had the FSA, as FSAs typically do not roll over. Some FSAs offer a buffer window, allowing customers additional time to submit receipts for expenses incurred during the previous calendar year.