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ALPS MOUNTAINEERING

ALPS Mountaineering Caldera 75 - Gray

$349.00
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75L Expedition Backpack for Multi-Day Trekking & Backcountry Travel

Quick Facts

• Capacity: 75 L / 4575 in³
• Weight: 5 lb 11 oz
• Torso Range: 15.5 in – 20.5 in
• Waist Belt Range: 32 in – 51 in
• Fabric: 200D nylon double ripstop
• Frame: Dual aluminum frame stays
• Hydration Compatible: Yes
• Rain Cover: Integrated, side storage pocket
• Access: Top loading with front access and lower compartment


Product Description

The ALPS Mountaineering Caldera 75 is a high-capacity backpack designed for extended backcountry travel and multi-day trekking. Constructed from lightweight double ripstop nylon and supported by dual aluminum frame stays, the pack delivers the structure and durability needed to carry heavier loads over long distances.

A large main compartment with internal divider keeps gear organized while multiple access points allow quick retrieval of equipment without unpacking the entire bag. The expandable top lid can be removed and converted into a waist-mounted fanny pack, giving you a lightweight carry option for short excursions away from camp.

With hydration compatibility, integrated rain protection, and a fully adjustable suspension system, the Caldera 75 provides the capacity and comfort needed for demanding backpacking trips.


Built for Multi-Day Backpacking & Expedition Travel

Large 75L Capacity
Designed to carry extended-trip gear for backpacking, trekking, and expedition travel.

Dual Frame Support
Dual aluminum frame stays improve load stability and distribute weight across the suspension system.

Multiple Access Points
Top loading design, front access zipper, and full lower compartment access make gear retrieval fast and efficient.

Convertible Top Lid Pack
The removable top lid converts into a fanny pack for short hikes or trips away from base camp.

Integrated Weather Protection
An included rain cover stores in a side pocket and deploys quickly during wet conditions.


Features

• Lightweight 200D nylon double ripstop construction
• Removable sternum strap with rescue whistle buckle
• Pull-forward tightening waist belt
• Shoulder strap padding wraps to the back for added comfort
• Internal horizontal divider for gear organization
• Generous front access zipper to main compartment
• Full-access lower compartment with #10 zipper
• Top loading design with expandable lid
• Removable top lid converts to fanny pack
• Over-the-top compression strap and multiple side compression straps
• Spindrift collar with draw cord
• Front stretch pocket for quick-stash gear
• Front wing lashing system for external gear carry
• Traditional trekking pole loops
• Stretch side bottle pockets
• Hydration reservoir sleeve with dual hose ports
• Air mesh covered suspension for airflow and ventilation
• Removable padded waist belt with pockets
• Small harness option available
• Small and XL waist belt options available


Specifications

Model: Caldera 75
Product Number: 2433811
Color: Gray

Capacity: 75 L / 4575 in³

Weight: 5 lb 11 oz

Torso Range: 15.5 in – 20.5 in

Waist Belt Range: 32 in – 51 in

Fabric: 200D nylon double ripstop

Frame: Dual aluminum frame stays

Hydration Compatible: Yes

Rain Cover: Included, stored in side pocket


FAQ

What type of trips is the Caldera 75 designed for?
It is best suited for multi-day backpacking trips, extended trekking routes, and expedition-style travel.

Can the top pocket be used separately?
Yes. The removable top lid converts into a waist-mounted fanny pack for short trips from camp.

Does the pack include rain protection?
Yes. An integrated rain cover stores in a side pocket and can be deployed quickly when needed.


The Caldera 75 provides the capacity, durability, and flexible access needed for long-distance backpacking and extended backcountry adventures.

Product information

Stay Ready Outdoors — Return & Refund Policy

Last Updated: February 27th, 2026

At Stay Ready Outdoors, we stand behind the quality of our products and want you to be completely satisfied with your purchase. If you need to return an item, please review our policy below.


Returns

We offer a 30-day return policy, meaning you have 30 days from the date you receive your item to request a return.


Return Eligibility

To qualify for a return, your item must be in like-new condition, meeting the following criteria:

  • Unworn, unwashed, and with all original tags and stickers still attached

  • Free of any scents like perfume, cologne, or smoke

  • Free of any marks, stains, or pet hair

  • In its original packaging, including all accessories

  • Must include proof of purchase (receipt or order number)


How to Start a Return

To initiate a return, email us at info@stayreadyoutdoors.com with your order details. Once approved, you’ll receive return instructions and a prepaid shipping label.

For standard parcel items:
The cost of return shipping will be deducted from your final refund.

For oversized or freight items:
Return shipping is the customer’s responsibility (see Oversized and Freight Item Returns below).

Important: Items sent back without prior approval will not be accepted.


Return Address

Stay Ready Outdoors
ATTN: Returns
15236 Las Flores Ave
La Mirada, CA 90638


Oversized and Freight Item Returns

Due to the size, weight, and freight handling requirements of certain products, free or prepaid return shipping does not apply to oversized or heavy items.

This includes, but is not limited to:

  • Rooftop tents

  • Pro Eagle jacks

  • Large recovery equipment

  • Freight-shipped or oversized products

Important details:

  • Customers are responsible for return shipping costs on these items unless the product arrives damaged, defective, or incorrect.

  • Original outbound shipping charges (if any) are non-refundable.

  • Freight returns must be properly packaged and may require coordination with Stay Ready Outdoors support.

  • Items must be returned in new, unused condition with original packaging and all components.

Stay Ready Outdoors reserves the right to determine whether an item qualifies as oversized or freight-required based on weight, dimensions, or carrier requirements.


Damaged, Defective, or Incorrect Items

Please inspect your order upon arrival. If your item is damaged, defective, or incorrect, contact us at info@stayreadyoutdoors.com within 7 days so we can evaluate and resolve the issue promptly.


Non-Returnable Items & Exceptions

Some items are non-returnable, including:

  • Briefs (due to hygiene reasons)

  • Sale items (these sales are final)

  • Gift cards

  • Engraved or customized items

  • Perishable goods (e.g., food)

  • Personal care items (e.g., hygiene or beauty products)

  • Hazardous materials (e.g., flammable liquids or gases)


Food or Drink Products — All Sales Final

Due to the nature of long-term food storage, all sales on food or drink products are final. We do not accept returns or exchanges on food or drink products for any reason including incorrect order, change of mind, or shipping delays.

Replacements will only be issued in the event of a verified manufacturing defect or shipping damage, which must be reported within 5 days of delivery with supporting photo documentation.


Products Fulfilled via Shopify Collective

Some items sold by Stay Ready Outdoors are fulfilled by third-party vendors through Shopify Collective. These items follow slightly different return procedures:

Return Window
Returns must be initiated within 30 days of the purchase date.

Who Handles the Return
Returns and exchanges for these products are handled directly by the originating business. However, you may contact Stay Ready Outdoors at info@stayreadyoutdoors.com for assistance facilitating a return or exchange.

Customer Responsibility for Shipping Costs
Shipping cost responsibility varies by vendor. Some vendors offer free returns or exchanges, while others may require customers to pay return shipping.

Size Exchanges
If a return is for a size exchange only, the replacement item will be shipped once the original is received and inspected, following the vendor’s policy.

Refunds
If a refund is approved after inspection, the originating business will notify Stay Ready Outdoors and the refund will be processed to the original payment method.

Price Changes
Prices for Shopify Collective products are subject to change without notice.


Vendor-Specific Note

The Buffalo Wool Company
Items fulfilled by The Buffalo Wool Company through Shopify Collective follow the same return procedures listed above. Customers are responsible for return shipping costs unless otherwise stated by the vendor.

All other eligibility requirements and non-returnable item restrictions in our standard policy still apply unless otherwise stated.


Exchanges

The fastest way to exchange an item is to initiate a return for the original item and, once accepted, place a new, separate order for the desired item.


European Union Customers — 14-Day Cooling-Off Period

If your order was shipped to the European Union, you have the right to cancel or return it within 14 days of delivery for any reason.

To be eligible, items must be unused, with original tags and packaging, and include proof of purchase.


Refunds

Once we receive and inspect your return, we will notify you of approval. If approved, your refund will be issued to the original payment method within 10 business days, less applicable return shipping costs.

Please note:

  • Your bank or credit card company may require additional time to post the refund.

  • If you have not received your refund within 15 business days of approval, contact info@stayreadyoutdoors.com.


Need Help?

If you have any questions about your return or refund, we’re here to help:

Email: info@stayreadyoutdoors.com

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