BLACK WASH WRAP SWEAT BAJI by Sundae School, featuring a wide-leg silhouette in black cotton with front pockets and a small square patch pocket on the upper left leg, displayed flat against a white background.

A person wearing Sundae School’s BLACK WASH WRAP SWEAT BAJI and black shoes stands inside a subway car with their hands at their sides. The upper body is not visible, and signs on the subway door behind read “Do not block” and “Do not lean on door.”.

A person wearing Sundae School’s BLACK WASH WRAP SWEAT BAJI stands with their back to the camera on a subway train, facing closed metal doors adorned with warning signs.

A person stands in a subway car wearing Sundae School’s BLACK WASH WRAP SWEAT BAJI. Their hands are in their pockets, and the subway seats around them are empty.

Wearing Sundae School's BLACK WASH WRAP SWEAT BAJI, a woman stands at the center of an empty subway car with her hands in her pockets, facing forward. The car features silver doors, blue seats, and signs that read “Do not lean on door.”.

BLACK WASH WRAP SWEAT BAJI by Sundae School, featuring a wide-leg cotton silhouette with an elastic waistband and a single back pocket, displayed flat on a white background.

Introducing the BLACK WASH WRAP SWEAT BAJI by Sundae School: unisex black pants crafted with an elastic waistband, two side pockets accented with subtle rhinestone embellishments, and a flap pocket on the thigh. Reminiscent of classic joggers, these sweat baji feature a soft, lightly textured fabric for comfortable everyday wear.

Close-up of the BLACK WASH WRAP SWEAT BAJI by Sundae School, featuring a black fabric with a pocket seam, a drawstring with a silver tip, and subtle embroidered script near the pocket.

BLACK WASH WRAP SWEAT BAJI by Sundae School: Black cotton sweatpants featuring a small side rectangular pocket adorned with a subtle embroidered flower motif and secured with a snap button closure.

Close-up of the black fabric from Sundae School's BLACK WASH WRAP SWEAT BAJI, featuring a small, flower-shaped metal button attached to an elastic cord—likely part of the adjustable wrap-front drape detail.

Close-up of the BLACK WASH WRAP SWEAT BAJI by Sundae School, showcasing a black fabric pocket with subtle embroidered flower and script details on its soft, high-quality cotton surface—reminiscent of unisex jogger sweatpants.

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BLACK WASH WRAP SWEAT BAJI

$123

Low returns

Customer-loved

14-day return

Heavyweight warmth guaranteed with 90% duck down fill and a durable 100% nylon shell.

Internal vertical quilting creates a slimming fit, featuring multiple pockets for maximum storage.

Asymmetric tie and zipper closure inspired by the traditional Korean hanbok for silent luxury.

COMPLETE THE STYLE:

BLACK WASH FLOWER KNOT ZIP UP

$145

BLACK WASH HANBOK HOODIE

$125

INDIGO DAENGGI CAP

$58

100% Cotton Sweat Jersey
Wrap-front construction with a curved drape silhouette
Asymmetric button placket, hidden snap closure, and custom rivets
High-rise, full elastic waist with inner drawstrings
Full-length leg with adjustable toggle elastic cuffs
Custom embroidery at the front and a Signature stash pocket 🪡 at the side
Available in Navy Wash and Black Wash
Model is 5'8 and wears a S

The Wrap Sweat Baji is back, and honestly, they've never felt better. We kept that crazy wrap-front drape and curved silhouette, but threw it onto our new four-season cotton weight so you can practically live in them. They feature a high-rise waist with drawstrings tucked safely inside, plus custom toggles at the cuffs so you can dial in exactly how they break over your kicks. The absolute best part? The interior is so stupidly soft, you can straight up wear them commando.

Fit Tip: Relaxed cut, unisex sizing. Men should take their usual size. Women should size down if in doubt for a truer fit. Model is 5'8 and wears a S

🚚 SHIPPING & DELIVERY

Free U.S. shipping on $200+.

Orders ship in 1–5 business days (Mon–Fri).

We rest on weekends + holidays to stay human.

You’ll get a tracking email when your order ships.

Due to an operational relocation, minor shipping and support delays may occur between July 15th and August 15th. We are taking every precaution to minimize disruptions. We apologize for the delay, and we thank you for your patience and understanding during this transition.

⛪️ Shipping Return Policy:

Online Returns Only: All items purchased in-store and online must be returned via our RETURN PORTAL! We do not accept physical returns or exchanges at the store.
Email Receipt Required: A valid email receipt is mandatory to initiate any return or exchange.
Shipping & Fees: Customers are responsible for return shipping costs to our warehouse. A $3.50 processing fee will be deducted from the final refund amount.
Eligibility: All standard online return/exchange eligibility rules apply.
Rejected Returns: If your item does not pass our condition inspection, it will not be accepted. You may request to have the rejected item shipped back to you at your own expense within 30 days of the rejection notice. Unclaimed items after 30 days will be responsibly discarded.

Effective May 14, 2026, our return processing fee has changed to a flat rate of $3.50. For any returns processed prior to this date, the previous 5% fee will apply.

We appreciate your patience and support as we grow. If you have any questions, our team is happy to help!

⚖️ Risk of Loss (UCC § 2-509 — in human words):

Once we hand your package to USPS/UPS/FedEx and they scan it in, they are responsible for getting it to you.

We’re a small brand — we can’t absorb carrier mistakes the way Amazon can.

If you want coverage until final delivery, please add shipping protection at checkout.

Please note that Sundae School will not be liable for any lost/stolen shipments that do not have a shipping protection.

If you purchased package protection with your order and your package is lost, you can file a claim here.

⏰ FTC SHIPPING TIMING (16 CFR § 435)

We legally must ship within the time advertised — or within 30 days if nothing is stated.

If there’s a delay, we’ll notify you + give you the option to cancel for a full refund.

📦 PACKAGE PROTECTION

Your package protection covers shipping mishaps caused by carriers during transit. It is added to all orders by default, but you may remove it on the cart page before checkout. Please note that once it is removed, we're unable to assist with any shipping-related issues.

Your package protection also includes a free return label, meaning the cost of the return shipping is covered if you choose to return or exchange your order. However, it does not cover restocking fees charged by our third-party warehouse, as these are not related to shipping mishaps, nor overrides final-sale eligibility.

If your package is lost and you purchased Package Protection with your order, please file a lost package claim here.

🕵️ MISSING OR STOLEN PACKAGES

Once a package is marked “Delivered”, our delivery obligation is complete under UCC § 2-509 & § 2-510.

If it says “Delivered” but you can’t find it:

Check with neighbors/building staff
Contact the carrier to file a claim
We’ll support with any proof they need

We cannot refund, replace, or reship delivered packages.

Lost Before Delivery:

If tracking stalls or there’s no delivery scan, please contact the carrier for a “lost package” investigation.

We’ll help with documentation.

Undeliverable Packages:

Wrong address / refused / unclaimed → you cover re-shipping.

Original shipping isn’t refundable.

💸 DAMAGED / DEFECTIVE ITEMS

First of all, we’re so sorry that your item arrived in less-than-perfect condition 😭. While we don’t currently offer repair services, we’ll do our best to make this right for you.

Please email us at counselor@sundae.school with clear photos or videos of the issue, and our team will assist you as soon as possible.

Need an extra button?

Most of our garments include extra buttons inside the item. If your item did not come with extra buttons, feel free to reach out to us and we'll be happy to help.

Lost the extra buttons or your order was delivered over a month ago? You can still request replacement buttons for a small shipping fee.

💸 PRICE MATCHING

We’ll match a lower price with store credit within 7 days of purchase if:

The item is identical (size/color)
In stock
Sold full-price at sundae.school or an authorized retailer
You provide proof (screenshot/link)

Not eligible:

Flash sales, discount codes, bundles, promos, unauthorized resellers.

Adjustments:

Issued as store credit only, per UCC § 2-209 (contract modifications require written agreement).

Once store credit is issued, the transaction becomes final sale.

🌏 INTERNATIONAL

We currently ship to U.S. and Canada only. All international orders are final sale.

If you wish to have your orders delivered to outside the U.S. and Canada, we recommend forwarders like Forward2Me.

🪩 SUMMARY OF LEGAL BACKING (so we can all sleep at night)

Topic	Governing Rule	What It Means for You
Risk of Loss	UCC § 2-509 & § 2-319	Once we give the package to carriers such as UPS/FedEx/USPS, you own the risk.
Breach Exception	UCC § 2-510	If we ship the wrong item or defective goods, risk stays with us until fixed.
Modifying Rules by Agreement	UCC § 1-302 (former § 1-102)	We can change the default rule only by written agreement.
Shipment Timing	FTC 16 CFR Part 435	We must ship within stated/30 days or notify you of delay and offer refund.

✉️ QUESTIONS?

Email counselor@sundae.school

Mon–Fri 10 AM – 4:20 PM PST

We’ll respond after our matcha break (and before the next existential crisis).

Thanks for supporting a tiny team doing our best to serve you transparently.

Measurement (in)	XS	S	M	L	XL
A. Waist range (full)	25.2 - 32.2	27.6 - 34.6	30 - 37	32.2 - 39.4	34.6 - 41.8
A. Waist (extended)	16.1	17.3	18.5	19.7	20.9
B. Hip (half)	21.7	22.0	23.2	24.4	25.6
C. Front rise	13.0	13.4	13.8	14.2	14.6
D. Inseam	26.4	26.8	27.2	27.6	28.0

BLACK WASH WRAP SWEAT BAJI

COMPLETE THE STYLE:

Cheat sheet

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