Women's Sylva 12 Hydration Backpack

SKU: 10005076

Regular price$160.00
  • In stock, ready to ship
  • Inventory on the way
  • Free shipping on all orders $49+

When you're out on the trail, you want your gear to fade into the background, and the Sylva 12-liter hydration backpack achieves just that with its sleek profile. Equipped with an updated Hydraulics LT 2.5-liter reservoir, ventilated AirSpeed™ suspension, and an included rain cover, this pack is tailored for longer rides in hot or humid conditions. It offers ample space for essential on-bike items like tubes and first aid supplies.

Featuring a range of practical elements, including front and side stretch mesh pockets, scratch-free zippered slash pockets, and a LidLock helmet carry system, the Sylva 12 ensures easy access to your gear while you're on the move. The integrated rain cover adds versatility, allowing you to ride in any weather condition without hesitation.

For enhanced comfort and stability, the pack is equipped with bike-specific features such as a tensioned mesh backpanel, a winged shoulder harness, and a BioStretch harness with breathable spacermesh contact surfaces. The padded spacer mesh hipwings, with a webbing ErgoPull waist strap, provide added support and stability during your rides.

With its thoughtful design and functional features, the Sylva 12 hydration backpack is the ideal companion for female riders tackling challenging trails in varying weather conditions.

Osprey Sylva 12 Features:

  • Front stretch mesh pocket
  • Scratch-free heat-embossed zippered slash pocket
  • LidLock helmet carry
  • Blinker light attachment
  • Integrated removable high-visibility rain cover
  • Magnetic sternum strap for quick access to reservoir bite valve
  • Zippered tool organization pocket
  • A dedicated reservoir compartment with Hydraulics LT 2.5 L reservoir included
  • Dual stretch mesh side pockets
  • Dual upper and lower side compression straps

Tech Specs:

Volume: 732 IN 3 / 12 L
Dimensions:  8.7H X 10.4W X 16.9D IN
Weight: 1.984 LBS
Fabric: Main & Bottom: Bluesign® approved 100% recycled 500D high-tenacity nylon, DWR treatments made without PFAS

Please reach out to us with any questions you may have on anything we sell. We want to make sure you get the right part the first time. Our lifelong riders at Thunder Mountain Bikes are knowledgeable and would love to talk to you!


We currently offer both economy and expedited shipping options though FedEX and USPS. 

Orders totaling over $49 are eligible to ship for free via an economy ground option of our choice. 

If you're in need of something super-quick, please contact us directly. We may be able to overnight your order with an additional fee and depending on your location. 


Should there be an issue with the item you bought, or you no longer need your purchase, we will be happy to set up a return.

Returns or exchange requests for New or Used Bikes must be requested by emailing us at sedona@thundermountainbikes.com within fifteen (15) days from the date of delivery. Bikes must be in un-ridden condition. Custom-built bikes may not be returned. Returned bikes have a $200 restocking fee and the customer pays for return shipping.

Returns for most other items may be requested within sixty (60) days of the delivery date. All returned items must be received in new, unused, and uninstalled condition, with the original tags and labels attached and in the original packaging. We cannot accept returns on any items installed or show wear of any kind. 

Clearance and open-box items may not be returned. 


To request a return, please log in to your customer account by clicking the  customer account icon  Profile icon in the top right of any page or visit account.thundermountainbikes.com

1. In the Email field, enter your email address and click Continue.

2. In your email account, open the email sent from our store and copy the six-digit verification code included in the email.

3. Go back to the online store and enter a six-digit verification code to log in.

4. Find and click on the order that you want to submit a return for.

5. If your order has more than one item, select only the items you want to return.

6. Select a return reason and add a note for the store if needed.

7. Click Request Return.

Once your return request is approved, you will receive an email with shipping instructions and a return shipping label. 


We will process your return after we receive your returned item(s) and inspect the condition. Please allow at least seven (7) days from the receipt of your item to process your refund. We will notify you by email when your return has been processed.


If you receive defective or damaged products or if we sent you the wrong products, please contact us using the phone number or email below.


If you have any questions concerning our return policy, please contact us at:

(928) 282-1106   |   sedona@thundermountainbikes.com

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