Ultralight Summer Sleeping Bag

COMPACT COMFORT & PROTECTION

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Made with 850FP DownTek™ PFC-Free Water Repellent Down and a water-resistant Ripstop Nylon outer shell, our Summer Sleeping delivers the comfort and protection you need for wet, humid summer conditions.

  • Ships in 24 hrs

  • Easy returns

  • Lifetime Warranty*

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Explore Product Features

Ultralight & Compact

Ultralight & Compact

Weighing just 512g, our Ultralight Summer Sleeping Bag is built to pack down smaller and lighter than the competition without sacrificing comfort.

DownTek™ PFC-Free Down

DownTek™ PFC-Free Down

Our Summer Sleeping bag utilises RDS-Certified, bluesign® approved DownTek™ PFC-Free Down for best-in-class thermal efficiency and waterproof performance.

Adjustable Neck Closure

Adjustable Neck Closure

The adjustable neck closure can be cinched or left loose, allowing you to easily regulate your temperature throughout the night.

High-Quality Construction

High-Quality Construction

Our Summer Sleeping Bag is made with premium components and materials, hand-selected for their proven durability and performance.

Specifications

Temperature Rating 10°C / 50°F (LOWER LIMIT)
Dimensions 185cm (Length) × 82cm (Shoulder) × 29cm (Width Foot) × 26cm (Height Foot)
Material (Shell) Ripstop Nylon with C0 DWR Coating
Material (Fill) 850FP DownTek™ PFC-Free Water Repellent Down
Fill/Packed Weight 180g/512g
Packed Dimensions 20 × 14 × 14cm

1 × Ultralight Summer Sleeping Bag

1 × Ultralight Compression Sack

1 × Down Storage Sack

ALL ALTON PRODUCTS ARE COVERED BY A LIFETIME WARRANTY.* CLICK HERE TO LEARN MORE.

ALL ALTON PRODUCTS ARE COVERED BY A LIFETIME WARRANTY.* CLICK HERE TO LEARN MORE.

ALL ALTON PRODUCTS ARE COVERED BY A LIFETIME WARRANTY.* CLICK HERE TO LEARN MORE.

ALL ALTON PRODUCTS ARE COVERED BY A LIFETIME WARRANTY.* CLICK HERE TO LEARN MORE.

Sleep Better, Go Further, Stay Cooler

In warmer climates or during the hot summer months, a full winter bag is overkill. You’ll end up overheated and sweaty, which can reduce the insulation performance of your warmer (and more expensive) sleeping bag over time. That’s where an Ultralight Summer Sleeping Bag comes in handy. It keeps you comfortable without trapping too much heat, offering the perfect balance of insulation and breathability so you stay cool, comfortable and dry all night long.

Only Carry the Insulation You Need

Weighing just 512g, the Summer Sleeping Bag is significantly lighter and more compact than the Sleeping Bags in our range. That’s a huge advantage for adventurers who are looking to go as light as possible. Although intended for use in warm weather or camping in heated huts, by pairing your Ultralight Summer Sleeping Bag with a warm liner, wearing more layers, or using it with an insulated sleeping mat, you can bump up the warmth to handle slightly cooler nights if needed.

Built for Warm, Humid Environments

Our Ultralight Summer Sleeping Bag is built to perform in warm, humid conditions where untreated down would usually fail. It’s filled with 850FP DownTek™ PFC-Free Water Repellent Down that stays dry for over 10 times longer than untreated down. On top of that, the ripstop nylon shell is treated with a PFC-free C0 DWR coating that is highly water resistant, making the Ultralight Summer Sleeping Bag the ideal choice for warm, humid climates with frequent rainfall.

Ultralight Comfort for Any Sleeping Position

The Ultralight Summer Sleeping Bag is designed to provide efficient warmth and comfort for any sleeping position. Its tapered mummy cut is slightly wider than standard, allowing you more room to spread out and get comfy on warm nights, while the square footbox ensures your feet can rest in a natural position without feeling cramped. If you’re feeling the chill, the hoodless opening can be cinched in a bit tighter for improved heat retention, giving you the flexibility to fine-tune warmth and ventilation as the conditions change.