Sea To Summit UltraSil Compression Sack 35L

The Sea To Summit UltraSil Compression Sack 35L is an ultralight and durable compression sack designed for backpackers, campers, and travelers who need to minimize pack volume. Made from 30D siliconized CORDURA® nylon, this sack is water-resistant and incredibly strong for its weight. The compression system uses four Hypalon reinforced straps to reduce gear volume by up to two-thirds, making it ideal for bulky items like sleeping bags and clothing.

Advantages

Ultra-lightweight at only 108 grams, the UltraSil Compression Sack offers exceptional strength-to-weight ratio. The siliconized fabric provides water resistance, while the Hypalon reinforcements at stress points ensure long-lasting durability. Field-repairable buckles and double-stitched seams add to the reliability. The drawstring top with lid keeps contents secure and protected.

Suitable for

• Backpacking and hiking trips where weight savings are critical
• Camping and outdoor adventures requiring compact gear storage
• Travel organization for bulky items like sleeping bags and jackets
• Gear storage and compression for climbing, mountaineering, and expedition use

Key specifications

• Capacity: 35 Liters
• Material: Ultra-Sil 30D siliconized CORDURA® nylon
• Fabric Denier: 30D
• Water Resistance: Water-resistant (not fully waterproof)
• Closure: Drawstring top with lid
• Compression: 4 x Hypalon reinforced compression straps
• Buckles: Field repairable
• Seams: Double-stitched and bar-tacked stress points
• Shape: Cylindrical
• Uncompressed Dimensions: 27 cm diameter x 60 cm height
• Volume Reduction: Compresses gear by up to two-thirds
• Weight: 108 g
• Intended Use: Backpacking, camping, travel, gear organization

Recommendations

For best results, use the UltraSil Compression Sack to store and compress sleeping bags, clothing, and other soft gear. Avoid overstuffing to maintain fabric integrity. The sack is not fully waterproof, so use a dry bag for wet conditions if needed.