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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28
For Your Every Summer RSVP, with Code: SUMMER15
Description
Neutrino 400 LongFor the alpinist looking for a lightweight, low bulk bag suitable for cold temperatures, the Neutrino 400 offers exceptional packability and warmth for its weight. Designed with a narrow mummy fit, for reduced bulk and pack size, and constructed with lightweight, high performance materials. Its perfect for three season mountain missions. The Neutrino 400 is filled with 400g of 800FP, goose down, stabilised in chevron shaped baffles, cleverly designed
For the alpinist looking for a lightweight, low bulk bag suitable for cold temperatures, the Neutrino 400 offers exceptional packability and warmth for its weight. Designed with a narrow mummy fit, for reduced bulk and pack size, and constructed with lightweight, high performance materials. It’s perfect for three season mountain missions. The Neutrino 400 is filled with 400g of 800FP, goose down, stabilised in chevron shaped baffles, cleverly designed to reduce the amount of fabric needed compared to traditional horizontal baffles. The trapezoid boxwall baffle construction allows the down to fully loft, eliminates cold spots, and maximises warmth. Additional baffles along the length of the zip and around the neck decrease heat loss, and with an adjustable drawcord around the hood you can cinch the bag around your face. Now built with a recycled nylon lining and recycled Pertex® Quantum outer, it’s wind resistant and a little lighter on the planet too. The down is also finished with a Nikwax, fluorocarbon-free hydrophobic treatment for coping with condensation.- Weight saving chevron baffle design, reduces down migration and optimises core warmth.
- Trapezoidal boxwall construction with differential cut, to maximise loft and warmth
- Close fitting adjustable neck baffle design for decreased heat loss
- YKK 3/4 length main zip with synthetic filled baffle to trap warmth
- YKK zipped internal stash pocket
- Angled foot box for relaxed sleeping posture
- YKK Anti-snag zip insert and anti snag internal zip guard
- Hand-filled in Derbyshire UK
- Zipped cotton sack with water-resistant base for home storage
- Waterproof roll-top compression sack included
- 800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (400g / 14.1oz)
- Main: 100% recycled polyamide - 20D Pertex® Quantum recycled nylon ripstop (38gsm) with fluorocarbon-free DWR
- Lining: 100% recycled polyamide - 20D Recycled Nylon (38gsm)
- Sleep Limit: 20°F (-7°C)
- Sleep Comfort: 30°F (-1°C)
- Sleeping Bag Length: 90.6 in
- Max User Height: 6' 6" (78.7 in)
- Internal Shoulder Girth: 63.8 in
- Internal Hip Girth: 52.8 in
- Internal Foot Girth: 40.9 in
- Pack Size: 13.8 in x 9.1 in
- Weight: 1 lb 14 oz (29.5 oz)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
True to size
Size: Small, Color: Royal Blue Heather
True to size. Very comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2025
★★★★★ 5
Great quality
Size: X-Large, Color: Heather Red
Very soft, great quality. Fits true to size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 5, 2023
★★★★★ 4
Good but very thin
Size: XX-Large, Color: Royal Blue Heather
Material is almost see through. Might be good if you're looking for a cool breezy shirt
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Reviewed in the United States on August 18, 2023
★★★★★ 5
Thin but not see thru
Size: X-Large, Color: Military Green Heather
Thin and comfortable
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Reviewed in the United States on May 19, 2025
★★★★★ 5
Great T-shirts
Size: Large, Color: Military Green Heather
Love these shirts! Must buy..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2025
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