Product Description
Next-Gen Hybrid Technology for the Perfect Touch - KFA Official Certified Ball for Junior Excellence
The Star Sports The Polaris 1000 SB394 Size 4 is a high-performance soccer ball officially certified by the Korea Football Association (KFA). This ball features Star's innovative Hybrid Construction, which combines the seamless precision of thermal bonding with the structural durability of machine sewing. The result is a more consistent spherical shape and superior air retention. Engineered with High Elastic Rubber Foam, it provides an exceptionally soft touch and responsive rebound, making it ideal for heading and powerful kicks even in cold winter conditions. With its high-performance bladder and complete waterproofing, The Polaris 1000 excels on both artificial turf and hard dirt grounds, ensuring consistent performance regardless of weather. As a Size 4 ball, it is the standard specification for elementary school players and elite youth academies.
- KFA Official Certified Match Ball
Meets the rigorous standards of the Korea Football Association, guaranteeing professional-grade quality for competitive youth matches.
- Innovative Hybrid Construction
Combines adhesive panel technology with reinforced sewing for a perfect sphere that outlasts traditional hand-sewn balls.
- High-Elasticity Rubber Foam
Specially formulated foam layer provides a soft, cushioned touch that reduces impact sting while maximizing energy return.
- All-Weather Waterproof Performance
Advanced seam sealing prevents water absorption, maintaining the ball's original weight and flight path even in heavy rain.
- Optimal Winter Performance
The specialized PU material resists hardening in low temperatures, ensuring a consistent feel during winter training.
- Multi-Surface Durability
Engineered to withstand the friction of both artificial turf and hard ground (dirt), making it a versatile choice for any facility.
- Size 4 Junior Standard
The official size for elementary school students and youth development programs (Circumference: 635-660mm).

Global Shipping
ROAExpo provides Global Shipping to over 130+ Countries worldwide.
All orders are shipped from our Central Logistics Hub, currently operated in South Korea, where ROAExpo directly performs free pre-shipment QQ Inspection (Quality & Quantity Inspection). Additional regional logistics hubs will be expanded globally in the future.
Available Shipping Methods
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- Air Parcel – Balanced option between cost and delivery speed
- EMS – International postal delivery service
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Shipping Cost Calculation
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Products from different brands or stores can be combined into one shipment when shipped from the same origin country.
You can combine products from multiple brands or stores in one cart to reach the USD $150 purchase threshold and receive shipping discounts, as long as the products are shipped from the same origin country.
The Final Shipping Cost Before Payment is clearly displayed at checkout. There are No Hidden Fees after payment confirmation.
Shipping Discount Benefits – Global Free Shipping (GFS)
- Orders over USD $150 with total shipping weight under 3kg may qualify for Free Shipping
- If total shipping weight exceeds 3kg, customers may receive up to USD $30 Shipping Discount
- The GFS Coupon (Code: ENJOYGFS-KOR) is automatically issued to eligible members and can be found in the member’s account after login. There is no limit on the number of uses.
- The GFS coupon may be combined with other promotions or coupons
- Eligibility may vary depending on product category, shipping method, and stock availability
Final discounted shipping cost is shown before payment confirmation.
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Order Processing & Tracking
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Once shipped, a Tracking Number will be provided to the customer.
Delivery time may vary due to customs clearance, local carrier operations, weather conditions, or public holidays.
Customs & Import Duties
Import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the customer unless otherwise stated.
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Returns Due to Defect or Shipping Error
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Non-Returnable Items
Certain products may not be eligible for return due to hygiene, safety, or manufacturer restrictions.
Customer Support
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☎️ +82-2-6951-0318 (Available Monday–Friday, 10:00–17:00 KST)