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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!
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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.
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Altra Footwear was launched in 2009, from Utah , America and . The name Altra based on the Latin word “ALTERA”, which means “ to fix or mend something that is broken”
ALTRA has developed many technology over the years, besides core 3, the Maxtrac™ outsole and TrailClaw™ lugs pattern which makes Trail shoes such as Lone Peak 5 has a great grip over different terrain. For the Midsole, the premium EGO™ midsole which creates a lightweight , high responsive and durable midsole. In 2001, the upgrade version of EGO™ –EGO™ Max and today EGO™ PRO which bring Altra's shoes midsole comfort to another high level.
ALTRA, which has always been committed to promoting natural running posture and making comfortable and fully functional running shoes for runners but its also committed to performance. To follow the trend of carbon fiber running shoes have become popular in major competitions, the brand has launched the Vanish Carbon, the brand's first carbon fiber racing running shoes.
On the Vanish Carbon the brand introduces a totally new midsole material EGO™ PRO. 33mm of a truly magical midsole material focused on resilience, propulsion, comfort and lightness. It is the highest performing midsole material of the brand, and it takes its rightful place in the Vanish Carbon.
After years of development the design of the carbon plate is unique to the brand. The shoe has 2/3-foot-length, three pronged, carbon fiber plate to strengthen the propulsion of the EGO™ PRO midsole. The forefoot is designed effectively to reduce weight and enhance the flexibility of running shoes. 
Compared with other ALTRA shoes, Carbon Vanish's "rocker" position, the“Active Stance Rocker, is 65% of the length of the outsole away from the heel. This will greatly improve runners' fluency and exercise efficiency when running.
Vanish Carbon is the technical crystallization of the desire of ALTRAs product development team to bring a top class shoe to the market.
It has undergone a number of years of fine-tuning and improvement from trial production to product launch, and the functions have been personally validated by professional athletes. For instance, Zach Bitter, the top American ultra-horse racer, wore the Vanish Carbon prototype in the USATF100 last year and bettered the course record by 13 minutes, which shows the excellent performance of Vanish Carbon in the field.
Altra Vanish Carbon
Weight : 206g (Men’s) / 176g (Women’s)
Stack Height:33mm
MIdsole : EGO™ PRO
Recommend:Speed series, up to 100KM Ultra Marathon Distance
Technical Details:
Altra EGO™ PRO midsole foam gives you all the light and luxurious performance with a little extra bounce and added durability.
Fit4Her™️ ALTRA has adapted 4 aspects of the shoes design to specifically match the specific differences in the female foot
Places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your trail run.
Allows your toes to relax and spread out naturally for more comfort and stability in uphill climbs and downhill descents.

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