Best in 7 days
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
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For Your Every Summer RSVP, with Code: SUMMER15
Description
X-LAB RS9 UDI2 BikeThe RS9 series is a competition level race bike. It is engineered to be light, aero and fast, providing the best ride quality yet quick and responsive enough on sprint attacks and climbing hills. The all rounded performance you can achieve on the RS series makes it super versatile; all of which can give you a significant advantage in racing. Equipped with aviation grade T1100 carbon fiber material, the RS9 frameset is ultralight with ultra high
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.6 ★★★★★
Based on 552 reviews
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Product Reviews
★★★★★ 5
I like the ankle length, they don’t slip.
Size: Medium, Color: (025) Castlerock / Castlerock / Anthracite
I love these socks, they are thick enough to not be scratchy, thin enough to be cool and breathable.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Excellent
Size: X-Large, Color: (025) Castlerock / Castlerock / Anthracite
Excellent product
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Reviewed in the United States on March 17, 2026
★★★★★ 5
Fit great
Size: Large, Color: (100) White / White / Halo Gray
Been a couple of months and they seem to be holding up nicely. Real picky about fit of socks and these fit well. They are very thin but very comfortable.
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Reviewed in the United States on October 21, 2024
★★★★★ 5
Always a win
Size: Large, Color: (001) Black / Black / Castlerock
Under armor is always a win! Comfortable, no peeling, true to size, no squeezing around the arch of foot & affordable.
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Reviewed in the United States on January 4, 2026
★★★★★ 4
Fit well and stay up
Size: Large, Color: (299) City Khaki / City Khaki / White
They're a little thin, so good mainly for warmer months. But they fit very well and I've not experienced any slippage
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Reviewed in the United States on March 17, 2026
