




Our models typically wear US Size 2-4 or Australian Size 6-8, X-Small, Small, or One-Size garments.
On each product page, we provide the model's measurements and what size she is wearing to help guide you.
You can refer to the charts when selecting sizes but please note that sizes cannot be guaranteed and might vary slightly between brands.
If you need any advice about sizing, please feel free to drop us a line at: service@sunnoss.com
The measurements in the description of individual products are taken only across the front side of the garment, not around the circumference (e.g. chest and waist).
If you can't find a completely satisfactory size in our size chart, don't worry! Feel free to contact us anytime at service@irispetal.com or through our online customer service. Our team is more than happy to provide personalized advice, recommend alternative styles, or assist with customization needs. Your comfort is our top priority!
Free Shipping on Orders Over $50 !
Fast, free shipping—style delivered with ease !
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Enjoy an extremely long return period during the event !
Our 24/7 customer care team is here to deliver thoughtful support !














The Balenciaga Track Zip Sneaker is one of the most recognizable footwear designs of the modern era — a bold. multi-layered chunky sole sneaker that transformed the concept of luxury athletic footwear. Whether you're a longtime Balenciaga collector or discovering the brand for the first time. the Track Zip delivers an unmistakable statement with every step.
The Track Zip features Balenciaga's signature exaggerated sole construction. layering multiple materials to create a dramatic platform effect. The upper combines mesh panels. synthetic overlays. and technical straps for a futuristic aesthetic that blurs the boundary between sportswear and high fashion. The zip closure — a defining feature of this silhouette — adds a utilitarian edge while making the sneaker easy to put on and take off without sacrificing a secure fit.
The Track Zip Sneaker thrives in street style settings but adapts beautifully to a wide range of outfits and occasions. Pair them with slim-cut joggers and an oversized hoodie for an effortless off-duty look. They work just as well styled against tailored trousers and a blazer for that fashion-forward high-low contrast that defines contemporary luxury dressing. Whether heading to a creative studio. a weekend brunch. or a gallery opening. these sneakers anchor any outfit with confidence.
The Balenciaga Track Zip Sneaker is available in EU sizes 35 through 45 to accommodate a wide range of foot sizes. Balenciaga sneakers generally run true to size. though some wearers with wider feet prefer to size up by half a step for extra comfort. If you are between sizes. sizing up is typically recommended for the best fit with chunky-sole styles.
Please refer to the size chart image above.
To preserve the appearance and longevity of your Track Zip Sneakers. clean the mesh panels with a soft brush and mild soap solution. Avoid submerging in water. Store in a cool. dry place away from direct sunlight. ideally in the original dust bag or box to maintain the sole's shape and color integrity.
Generally yes — most customers find their standard EU size fits well. If you have a wider foot or prefer a roomier feel. consider sizing up by half a size.
Yes. The cushioned multi-layer sole provides good underfoot support for daily wear. While they are a fashion sneaker first. the design incorporates enough padding for comfortable extended use.
Use a soft-bristle brush with a diluted mild detergent. Gently scrub the mesh areas in circular motions. then wipe with a damp cloth. Let air dry at room temperature — do not machine wash or tumble dry.
Yes. Balenciaga uses quality hardware for their zip mechanisms. With normal use. the zipper retains its smooth action. Avoid forcing it if the mesh bunches near the closure.
The Zip variant adds a side zip entry for ease of wear while maintaining the same iconic oversized sole and technical upper aesthetic. It offers a slightly cleaner profile compared to the lace-up Track model.
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