According to Tecnifibre, the X-One Biphase string uses High Heat Capacity (H2C) fibers, which allows the use of an innovative chemical treatment process called Trimerization. This new process increases the cohesion between chemical molecule links through extreme variations in temperature to result in ultimate dynamic efficiency (power) and exceptional feel. The new patented Biphasic process, with its visible marks on the string, extends string life by 20% and offers increased spin. Similar to its leading string, NRG2, the multifilament fibers within this string are immersed in polyurethane to provide shock absorption and optimum comfort.
- Length: 40 ft / 12.2 m.
- Construction: Multifilament / Polyurethane / H2C fibers / Biphasic treatment.
- Colour: Red.
This item has a dimensional weight of 1.0 kg per unit of quantity. Also known as volumetric weight, this is an estimated weight that is calculated from the length, width, height and actual weight of a package. It also takes into consideration oversize/fuel surcharges. It is not representative of the actual weight of a package. We use this estimated weight as the basis to our shipping rate calculations.
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Each item has a certain set of prerequisites that must all be met in order to return said item.
Sets or reels of string can be returned if in original manufacturer's packaging, unopened.
Regular priced items may be returned within 7 days of possession (delivery) of your purchased product for a refund or within 30 days for an exchange.
Sale items (discounted less than 40%) may be exchanged only for store credit or our gift card within 30 days.
No refunds or exchanges on Clearance Items (discounted 40% or more), strung racquets, water bottles, undergarments, worn or damaged product, opened massage devices and gift cards.
Customers are responsible for shipping fees on return shipments for refund or exchange. Most exchanged shipments can be shipped back to the customer at no extra cost. Return shipping must be a pre-paid, traceable method to ensure safe delivery.
More conditions may apply: view our full return policy