Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
For Your Every Summer RSVP, with Code: SUMMER15
Description
BOX Four Prime 9 Rear Shifter (8 Spd), Multi Shift - BlackPrime 9 Technology for greater simplicity and durability Available in single shift option for eMTB to keep the user from shifting multiple gears under load significantly reducing the rate of bent teeth and broken chains Multi shift option changes up to 3 gears at once for no eMTBs Box One features: die cast top shell, machined clamp, dual action relase lever, die cast release lever, and a stainless braided lo friction cable Box Two features: die cast
- Prime 9 Technology for greater simplicity and durability- Available in single shift option for eMTB to keep the user from shifting multiple gears under load significantly reducing the rate of bent teeth and broken chains
- Multi shift option changes up to 3 gears at once for no
-eMTBs
- Box One features: die cast top shell, machined clamp, dual action relase lever, die cast release lever, and a stainless braided lo-friction cable
- Box Two features: die cast top shell, extruded clamp, and dual action release lever
- Box Three features: resin top shell, and same as above
- Box Four features: 8 speeds, with Prime 9 Technology and the same construction as Box Three
- Limited Lifetime Warranty
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 639266097396
EAN: Not available
Manufacturer Part Number: BX-SH4-08AMS-BK
BX5360 LD0054
144748-Q0-L
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
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.6 ★★★★★
Based on 1397 reviews
Sort
Product Reviews
★★★★★ 5
Comfortable, Durable, and Stylish
Perfect gift choice! Excellent quality socks with a variety of colors to match any wardrobe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
★★★★★ 5
Great no show socks
Size: Small, Color: (725) Oxford Brown / Oxford Brown / Black
Very comfortable and perfect fit for my small feet. I love the full coverage sock feel with a totally no show sock.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 5
Great no shows for people with larger feet
Size: Large, Color: (001) Black / Black / Castlerock
Some of my favorite socks!! Great quality, fit, and material. I love that they don't slip down in my shoes, especially considering I have larger feet. I also love that Under Armour offers larger sizes in their socks considering everyone in our household has much larger feet than others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
★★★★★ 5
Best liner socks EVER
Size: Medium, Color: (348) Silica Green / Silica Green / Hydro Green
I have them in every color and used to get them from Sams, but they stopped selling them and I was lucky to find them on Amazon. Got all colors again. They stay, it's all I'm gonna say! And don't show in any of my tennis shoes. Absolutely love them and wear them until they get holes. They last a LONG time too. They're on the thin side and my foot loves them because they tend to get hot. There's no shrinking, they wash great with exception of the white ones I couldn't manage to keep white - they turned a bit greyish.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
★★★★★ 5
Great socks
Size: Medium, Color: Pink - 647
Well-made and comfortable to wear. Great for golf and other outdoor activities. Like them because they do not show above shoes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
recommand products
Stage 3 Clutch Kit (1MS) for Mazda RX-7 1992-1995 1.3L (13B REW) Turbo
286.90
2017-2018 BMW / Starter Motor / 3.0L Diesel / 8589891
44.95
Aluminum Lightweight Flywheel for Volkswagen Jetta GLI 2000 1.8L Turbo
257.80
2018-2020 Renault/Nissan / Thermostat Housing / 1.6L Diesel / 110611271R
61.00
Aluminum Lightweight Flywheel for Pontiac Sunfire 1995 2.3L
247.34