Frequently asked questions

Checkout Help

To see where we ship internationally, skip ahead to checkout and enter your mailing address. If eligible, you will receive option to proceed with checkout.

Current processing times for in-stock items is currently 1-3 business days, and could be subject to change, at any time, without notice, due to increase in volumes. Please review our shipping policy for more information.

After processing, your order will ship in the speed that is selected at the time of checkout. For more shipping information, please review our full policy.

"Delivered by" dates are estimated arrival times for items purchased under our Early Purchase Program. Any in-stock items will be shipped ahead and pre-ordered items will be shipped separately once in-stock, unless otherwise notated. For more information, please review our EPP policy.

Returns & Exchanges

If you are not 100% satisfied with your order, we offer a 14-day window for exchange or STORE CREDIT. All purchases are NON-REFUNDABLE (including but not limited to those made by cash, credit/debit, Square, and PayPal.) Please review full terms here.

All purchases are NON-REFUNDABLE (including but not limited to those made by cash, credit/debit, Square, and PayPal.) If you are not 100% satisfied with your order, we allow exchanges or store credit for all eligible items within 14-days of your postmarked package delivery date. Please see full terms here.

Customer is responsible for round-trip shipping cost to return items back to us and have exchange product shipped back. There are no additional restocking fees. For more information, please review our returns and exchange policy.

Breast Pumps & Accessories

There are 3 parts to clean. We recommend sterilizing the milk collector, silicone flange (and flange inserts), and diaphragm before first use and hand wash between each use. Do NOT wash or wet the motor.

Our pumps offer noise-free convenience, allowing you to pump more discreetly anywhere you are. So quiet and soothing that it will not wake a sleeping baby or disturb your partner.

Muscle Up Mommy J35 holds up to 200 mL/ 7oz at full capacity.

No. Milk is released from the pour spout when flipped upside-down.

We recommend that you avoid sleeping while pumps are in use, as side laying could cause overflow.

Our J35 pumps are designed with a standard 24mm flange. We do include 17/19/21mm flange inserts to customize your experience and optimize your milk output.

If you need a larger size, such as a 27mm flange, replacement parts can be purchased separately here.

Yes. Nipple size is the only size that's important when using our J35 wearable breast pump.

Each pump order includes a nipple size card with flange inserts to optimize your pump's performance.

No. Our J35 pumps are compatible with any standard nursing bra.

Check out Muscle Up Mommy's Nursing/Pumping Bra selection.

Absolutely. Our J35 Wearable Breast Pumps are considered a medical item is HSA/FSA eligible.

Our J35 pumps may be eligible for reimbursement by your insurance provider.

*Please note, we can make no guarantees or promises for partial, full or any amount of insurance coverage/reimbursement as each insurance provider has its own set of policies and insurance plans vary from person to person.

Please consult with your insurance administrator for more information.

*Please note, purchases from Muscle Up Mommy are based on out-of-pocket cost and any potential reimbursement made is to be handled privately by purchaser directly with your insurance administrator.

In the event that no coverage or reimbursement is provided, due to the sensitive nature of our J35 breast pumps, they are non-refundable and non-returnable. Please see full return policy here.

Absolutely. Our J35 pumps are warrantied to be free from defects in material and workmanship for a period of 12- months from your date of purchase.

This limited warranty does not cover damage caused by general wear and tear, physical or natural destruction, accidents, misuse, improper maintenance, neglect, or other external causes.

Extended protection can be purchased to add coverage for incidents outside of the limited warranty scope.

View the full warranty policy here.

No. We do not offer repairs to pump motor or parts.

Please see our extended warranty protection for coverage or purchase replacement parts.

Lactation Consulting / Services

Yes. Lactation services are classified as a medical service and is eligible for HSA/FSA funds.

Waist Trainers & Shapewear Products

Properly fitting garments is a priority for us. If you find that you are unable to fit an item that is eligible for exchange, you may submit a request for return authorization, following the instructions listed here.

We recommend reviewing our sizing guide and measuring your body to have the most accuracy on sizing. All sizing descriptions and measurements are listed on product pages as well. 

No. Our FupaEraser and Full Torso Vests are not designed with sauna fabric / sweat technology. Though you can sweat through increased movements, they are suitable to wear while running errands or wearing outside of workouts.

Our sweat belt is designed with our sauna / sweat inducing technology and our compression belt is not.


Sweat Belt: mainly used for active support, waist slimming and interval training. Has neoprene sweat technology built in.

Compression Belt: is designed to support moms after child birth. Mainly used after C-section or vaginal delivery during recovery period.


  • Both belts are designed to wear during postpartum.

You can start wearing it immediately after you deliver, but please check with your healthcare provider prior to use, especially if you’ve had a C-section.

We recommend wearing it no more than 6 hours a day for 8-12 weeks after birth to encourage abdominal recovery, proper posture and helping prevent back pain during breastfeeding.

If it has been a few months since delivery and you're feeling more comfortable to begin belling binding, we recommend our FupaEraser or Full Torso Vest.

We do not recommend wearing any waist trainer or belly binding garment while sleeping. This safe practice allows you to monitor if you grow uncomfortable or have shortness of breath to immediately stop use.

Do not machine wash. We recommend spot cleaning by hand with soap and water. Lay garments out to air dry.

No. We do not offer repairs on this item.

Please see our returns and exchange policy.

Early Purchase Program

Our Early Purchase Program (EPP) is designed to preorder extreme hot sellers so that you can secure your favorite items before they're restocked.

Not all products are eligible under this special pre-order program.

Delivered by dates are only listed on items that are available under the Early Purchase Program.

If you do not see a "delivered by" date, the item is either in stock or sold out.

In-stock items will be shipped ahead and pre-ordered items (marked with delivered-by" date will be shipped separately once in-stock, unless otherwise notated.

For more information, please review our EPP Policy.

Affiliations and Partnerships

MUM NEWS is our blog/news site and all information posted is generated by our editors. To learn more about family planning, parenting, money & careers, health and wellness, and more, visit

Muscle Up Mommy TV is a YouTube channel created by our CEO, Mykel B Davis. She highlights real life moments of family time, motherhood, entrepreneurship, marriage, and more in video form.

To watch the latest episodes/videos, visit