Sea to Summit’s luxurious range of sleeping bags have all been specially designed to perform in the most extreme conditions. Each sleeping bag has been carefully crafted using the finest natural down insulation and the latest in fibre technology, making beautiful, lightweight, technical sleeping bags. In the words of Sea to Summit’s founder, these truly are the most advanced sleeping bags available.

The Alpine ApIII is big brother to the Alpine ApII and is designed for the most extreme conditions. With a comfort rating of an incredible –12 C, and an extreme rating of -20C, this high-tech sleeping bag is lined with the highest quality 850+ loft European Goose Down. The Alpine duo are perfect companions for high altitude and arctic conditions. Like the Alpine ApII, the mummy fit of the Alpine ApIII is designed to cocoon the shape of the human body perfectly to maximise heat retention, and has a broader neck, shoulder and foot area to allow layering of clothing or boot liners while sleeping – ideal in extreme conditions. The anatomical shaped ‘box foot’ maximises this insulating design, and the huge neck-collar and hood-seal make sure drafts are kept out.

To add to the impeccable design are handy features such as anti-snag zips, its own laundry bag and a concealed pocket inside the sleeping bag – ideal for storing valuables and electrical, especially to preserve battery performance in the extreme cold. To ensure maximum insulation, additional down is located at the top of the sleeping bag by way of a side block baffle construction – this too maximises heat retention. The silky soft lining is both breathable and down proof, in order to guarantee the most comfortable night’s sleep possible. For its size, the Sea to Summit Alpine ApII sleeping bag is both lighter and warmer than its competitors and comes complete with its own compression sac for ease of storage and transportation. Simply a superb sleeping bag.

The Sea to Summit Alpine Series APIII is a serious 4 season sleeping bag designed for alpine activities and for use in the harshest of environments.

Temperature Range: -12ºC (Comfort) -20ºC (Lower Limit)
Extreme Capability: -42ºC (Extreme)

£599.99 inc VAT In Stock: More than 10

Delivery on this item is: Approx 7 Days

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Weight: 1.5800 kg

Type: Technical (Sports)

Shape: Mummy

Season: 4 Season

Lining: 210T Polyester

Size: Max User: 185 (R) 205cm (L)

Packed Size: 5L (Comp)

Key Features

• Super Durable Water Repellent
• Condensation Management System
• Highest Quality 850+ Loft European Goose Down
• 5 Offset Baffles
• Oversize Neck Colar & Zip Seal
• 60/40 Fill Ratio
• Anatomically Tapered Box Foot
• Side Block Baffle
• 3D Side Walls
• Lightweight Ultra-Sil® Compression Bag

Suitability

• Snow camping
• Winter trekking
• Ski tours
• Alpine activities
• Expeditions