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Product Description
■ Manufacturer's Description Quotation
The Spark series thoroughly pursues lightweight compactness while enhancing thermal insulation.
It is widely used as an ultralight liner and also takes advantage of its lightness for expeditions in severe winter conditions.
Even if the usage scenes differ greatly, the design philosophy of "adapting to the climate while being the lightest" is firmly reflected.
The Spark SpIII is a model that corresponds to subzero cold.
It is ideal for winter missions where you want to reduce your load as much as possible.
The entire body is made with a box baffle structure to enclose more down and eliminate cold spots.
It is an expedition-sized mummy type that secures a spacious area.
Vertical baffles are placed from the torso upwards to suppress down movement.
The half-length zipper is equipped with two sliders, providing excellent ventilation and usability.
Water-repellent treated ultra-dry down almost eliminates moisture that adversely affects the down.
It protects the down from external atmospheric water vapor and prevents condensation inside.
By adopting ultra-dry down, it also supports harsh environments such as alpine climbing and adventure races where a 1g difference is significant.
・Draft tube to suppress heat loss from the zipper
・Hood draft collar
・Thin fabric that achieves lightweight compactness
・Premium goose ultra-dry down with 850+ loft for maximum thermal insulation
・Mummy shape that provides comfortable and effective thermal insulation
・Vertical baffles from the torso upwards eliminate down movement and cold spots
・Not compatible with zipper connection for pairing
■ Filling: 850+ fill power 90/10 ULTRA-DRY premium goose down
■ Down weight: Regular = 430g
■ Weight: Regular = 665g
■ Suitable height: Regular = up to 183cm
■ Storage size (Regular)
・Staff sack XS (2–6 liters)
・Compressed volume = 4.6 liters
・Storage dimensions = 15×26cm
■ Temperature range (EN13537)
・Comfort temperature = -2°C
・Limit temperature = -8°C
・Extreme temperature = -26°C
■ Spark Sp Series (See other products in the same series here)
The Spark series thoroughly pursues lightweight compactness while enhancing thermal insulation.
It is widely used as an ultralight liner and also takes advantage of its lightness for expeditions in severe winter conditions.
※ Manufacturer images are used, so the specifications (logo position, color, pattern position, etc.) may differ slightly from this 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.