Search  for anything...
ROCKBROS

ROCKBROS Bike Seat Bag, Bicycle Saddle Bag Under Seat 3D Shell Cycling Seat Pack for Mountain Road Bikes Black

  • Based on 4,355 reviews
Condition: New
Checking for the best price...
$25.99 Why this price?
Save $3.00 was $28.99

Buy Now, Pay Later

As low as $6 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: 20 left in stock
Fulfilled by Amazon
Arrives Sunday, Mar 15
Order within 13 hours and 48 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Color: Black


Features

  • SPECIAL SHAPE and UPGRADE STRAPS:3D shell saddle bag with wave cushion provides inside shock resistant protection if fell out.Upgrade straps make up for the deflective old ones and support lifetime warranty
  • RAINPROOF:Waterproof fabric with taped zipper for rain.Do not soak this seat bag in the water for a long time( stitches are not waterproof )
  • EASY TO INSTALL:2 stickup straps and a rubber buckle simplify mount system.Moreover , it keeps bag securely attach to seat post
  • NIGHT VISIBILITY:Reflective strap around the seat bag to increase night visibility while night cycling.Taillight hook compact space on the seat post ( Taillight doesn't include in the package )
  • QUALITY GUARANRTEE and friendly customer service. Any questions during using contract RockBros Bicycle with pictures.ARTISTIC:Delicate details- mesh pockets , structured inside can hold cashes ,keys , snack bars and other small repair tools (W 3.22 * L 9 * H 3.93 inches)

Color: Black


Size: 9 Inch L x 3.22 Inch W x 3.93 Inch H


Brand: ROCKBROS


Material: Polyester


Vehicle Service Type: Bicycle


Color: ‎Black


Size: ‎9 Inch L x 3.22 Inch W x 3.93 Inch H


Brand: ‎ROCKBROS


Material: ‎Polyester


Vehicle Service Type: ‎Bicycle


Product Dimensions: ‎9"L x 3.22"W x 3.93"H


Item Weight: ‎135 Grams


Pattern: ‎Solid


Mounting Type: ‎Seat Mount


Strap Type: ‎Removable


Capacity: ‎1.5 Liters


Closure Type: ‎Zipper


Handle Type: ‎Web Handle


Number of Compartments: ‎1


Shell Type: ‎Soft


Manufacturer: ‎ROCKBROS


Automotive Fit Type: ‎Universal Fit


UPC: ‎783057062732


Global Trade Identification Number: ‎32


Model: ‎C16


Item Weight: ‎4.8 ounces


Item model number: ‎C16-BK


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎C16-BK


Special Features: ‎Waterproof


Date First Available: September 4, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Good storage option
Color: Black
Great item. I use it on my morning bike rides. Easily fits my cellphone and keys. Built sturdy. Mounting on the bike is easy.
Reviewed in the United States on December 10, 2025 by Rob
    • Well made, great choice.
Color: Black
Excellent quality, easy to install, very functional, and looks great. Fits my cell phone, glasses, wallet, arm warmers. Couldn’t be happier.
Reviewed in the United States on October 11, 2025 by Rockgirl
    • Almost perfect, slightly bigger and lighter would be better.
Color: Red
This is extremely sturdy with excellent shape and very good zippers. It seems a bit smaller than the claimed 1.5 liter size, and the velcro, while super secure when perfectly aligned, is unnecessarily stiff and makes fitment a bit fussy when the seat is set fully forward. 10-15% more interior space, less dense materials, and some mounting refinements would earn my fifth star. ... show more
Reviewed in the United States on January 14, 2026 by Maestro
    • Buy It!
Color: Blue
This is the BEST bike saddle bag I’ve ever purchased. Velcro is strong. No worries about it coming undone. Stitching and material is high-quality. No worries about it ripping. Zipper is a sturdy and strong fastener. Size of bag is just right. Fits perfectly and snuggly under the seat and is big enough to hold what every cyclist needs. No need to cram things in it, or worse yet, feel like you’re hauling a suitcase along for your ride. They thought of everything. Whether you’re a serious cyclist or a casual one, this is the saddle bag for you. Buy it! ... show more
Reviewed in the United States on December 9, 2024 by Customer
    • Good Bag.
Color: Black
This is a nice little bag at a good price. It attaches easily and securely. This was bought for my wife's bike. I have Cannondale bag on my bike that I've had for nearly 30yrs and it does not have a mounting system that is as easy to use as this bag. I would buy this again, if mine fails.
Reviewed in the United States on December 10, 2025 by JH
    • Durable Waterproof Bike Bag with lots of Space
Color: Black
Review Image by Noah Fetherston Noah Fetherston
Light weight tool bag with lots of space. Secures solidly to seat post & its size and geometry fits under saddle and looks great
Reviewed in the United States on January 20, 2026 by Noah Fetherston Noah Fetherston
    • Works For Me
Color: Black
Excellent saddle bag for my Giant Cypress LX. Plenty of space for my use and attaches easily to the seat post.
Reviewed in the United States on December 20, 2025 by Douglas Barrow
    • Excellent rendition system
Color: Black
Much better than most retention systems I’ve encountered. Has a strap for a rear light. The right size for tools and inner tube.
Reviewed in the United States on November 23, 2025 by Daniel

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...