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Product Description
CRUX AK37
■Manufacturer's Description
A lightweight, fully waterproof alpine backpack that has continued to evolve since CRUX's founding
AK Series [トップリッドタイプ]
The AK features a top lid, making it convenient to access small items at any time.
The lid has a large capacity, making it easy to carry snacks, maps, and small items.
The roll-top part of the main body uses a highly flexible material to increase airtightness.
Also, the back panel is simple yet fits wonderfully along the curve of the back, and the waist belt fits securely so you can carry it on your hips.
Even when carrying heavy gear or tent equipment, it feels comfortable without feeling overly heavy.
On long approaches or in scenes requiring technical movements, you can further appreciate this excellent fit.
"Two Assurances"
・Fully Waterproof
Being fully waterproof provides peace of mind against water during rainy mountain trips, stream climbing, alpine climbing, etc. The roll-top part uses a flexible material that enhances airtightness, achieving complete waterproofness.
・High Durability
Made from durable Kevlar material, it offers peace of mind as it is resistant to damage on rocky areas, walls, streams, ice core routes, and itineraries.
[防水性] The Kevlar is coated with a waterproof lining with a water pressure resistance of 10,000mm. Furthermore, the seams of the fabric are welded to prevent water intrusion.
[耐久性] The main body fabric Kevlar is a material that withstands strong contact or pressure from structures on the route such as rocks, ice, branches, as well as gear like axes and ski edges.
[シンプル性] By designing the structure simply, it minimizes exposure to troubles such as damage during routes, multi-day mountain trips, and long-term trips.
[リペア] Spare parts are prepared for many components, allowing for replacement. Also, repairs are performed as much as possible at the factory where it was produced, establishing a system to allow long-term use of a single backpack.
■Features
・Aluminum buckles (female) are used in frequently used areas to reduce the risk of breakage (top lid, waist belt)
・Axe holder
・Side compression
・Side pockets
・Hauling loops
・Upper compression straps
・The waist belt has grommets allowing for custom gear loop installation
・Fixed top lid
■Capacity: 37L
■Weight: 1,250g
■Size: Regular (Back length 48cm)
■Material: 40% Kevlar, 60% Nylon
■Frame: 7mm diameter titanium stays ×2 (removable)
※ Manufacturer images are used, so specifications (logo position, color, pattern position, etc.) may differ slightly from the actual product.
Available Payment Methods
Credit Card Payment
Convenience Store Payment
Digital Wallets and QR Code Payments
Bank Transfer
Japan Post Bank
Cancellations, Returns, and Exchanges
Before Placing Your Order
As a general rule, we do not accept returns or exchanges of merchandise for reasons related to the customer’s preferences, such as “it didn’t look like I expected” or “the size doesn’t fit.” If you have any questions or concerns, please consult with our staff first.
Please place your order after understanding and agreeing to the following points.
・Depending on the device or environment you are using, the color and texture of the product may appear slightly different.
・There may be slight variations in the dimensions listed in the product description.
・Minor scratches or scuffs may occur unavoidably during the manufacturing process.
・Depending on the material of the product, there may be variations in color, texture, or pattern from item to item.
Order Cancellation
As a general rule, we do not accept cancellations after a shipping confirmation email has been sent.
We make every effort to manage our inventory, but if we are unable to secure the items you ordered for unavoidable reasons, we may have to cancel your order.
Purchase Limit
We may impose purchase limits on certain products. Orders placed from multiple accounts believed to belong to the same person, or orders suspected of using bots, may be canceled or the quantity reduced.
*Please note that we assume no liability for any losses, damages, or other adverse consequences resulting from a cancellation.
Returns and Exchanges
While we take the utmost care to ensure the quality of our products and their packaging, in the unlikely event that an item arrives damaged or soiled, or if you receive an item that differs from your order, please contact us via the “Contact Form ” within 7 days of the delivery date. We will cover all associated costs.
・If a replacement item is available, we will replace the item.
・If we are unable to secure a replacement, we will issue a refund.
Please note that we cannot accept returns or exchanges if any of the following conditions apply. We appreciate your understanding.
・If more than 8 days have passed since the product was delivered
・When we determine that the customer has finished using the product
・If the item has been altered, washed, or dry-cleaned
・If any accessories (product tags, warranty cards, bags, boxes, etc.) are lost or damaged
・If odors, scratches, or stains occur while the item is in the customer's possession
・Items that come into direct contact with the skin, such as underwear, socks, and accessories, as well as perfumes and cosmetics, etc.
・If the item is returned without prior notice
About the Listed Prices
We take every precaution to ensure that the product information displayed on this site is accurate. However, in the unlikely event that we discover after payment has been processed that a product’s price was incorrectly displayed on the site, we will contact you and either adjust the price to the correct amount and process the payment, or cancel your order.
Important Notes
*Please note that inventory for this item is shared across our physical stores and other shopping sites operated by our company. We check inventory after receiving your order, so the item may be out of stock in some cases. We apologize for any inconvenience this may cause and will notify you via email if this occurs. Thank you for your understanding.