Sea to Summit Trailhead II Long Sleeping Bag

The Sea to Summit Trailhead II Long is a versatile 3-season synthetic sleeping bag designed for backpackers and campers who demand reliable warmth and comfort. With a tapered rectangular shape and WaveLoft™ construction, it offers excellent thermal efficiency and freedom of movement. The bag features a full-length YKK #5 zipper, can be zipped to another bag for a double setup, and includes an internal pocket for small essentials. It comes with a 15L compression sack for compact storage.

Advantages

This sleeping bag provides a perfect balance of weight, warmth, and packability. The THERMOLITE® synthetic insulation retains heat even when damp, while the DWR-treated nylon shell resists moisture. The WaveLoft™ construction eliminates cold spots and maximizes loft. The tapered rectangular shape offers more room than a mummy bag without sacrificing thermal efficiency.

Suitable for

• Three-season camping and backpacking
• Users up to 198 cm (6 ft 6 in) tall
• Those who prefer a roomier sleeping bag with good warmth-to-weight ratio

Key specifications

• Comfort Temperature Rating: 2°C (35°F)
• Lower Limit Temperature Rating: -4°C (25°F)
• Extreme Temperature Rating: -20°C (-4°F)
• Insulation: THERMOLITE® synthetic, 800 g fill weight
• Shell Fabric: 30D DWR Nylon
• Liner Fabric: 20D Nylon
• Shape: Tapered Rectangular
• Zipper: Full-length YKK #5
• Max User Height: 198 cm (6 ft 6 in)
• Shoulder Girth: 162 cm (64 in)
• Hip Girth: 152 cm (60 in)
• Foot Girth: 122 cm (48 in)
• Construction: WaveLoft™
• Stuffsack: 15L Compression Sack
• Season Rating: 3 Season
• Can be Zipped to Another Bag: Yes
• Internal Pocket: Yes

Recommendations

For optimal comfort, pair with a sleeping pad and a liner. The Trailhead II Long is ideal for spring, summer, and fall adventures. Store loosely in a dry place to maintain loft.