Lightweight Waterproof Bivy • Durable 70D Base • Breathable Storm Protection

Stay protected in unpredictable conditions with the Rab Storm Bivi, a rugged, waterproof bivy shelter designed for mountaineering, backpacking, and minimalist adventures. Built for reliability in harsh weather, this single-person bivy provides durable, breathable protection while remaining compact enough for fast-and-light travel.

🌧️ Full Storm Protection in a Minimalist Design

Engineered to handle tough conditions, the Storm Bivi features waterproof ripstop nylon with a PU coating and taped seams, creating a reliable barrier against rain, wind, and ground moisture.

• 10,000mm waterproof rating for reliable weather protection
• Durable 70D reinforced base for rough terrain
• Windproof design for exposed environments

This makes it a dependable shelter when conditions change fast.

🏕️ Spacious & Practical for Real-World Use

Unlike many minimalist bivy sacks, the Storm Bivi uses a 3D construction to provide extra room for comfort and gear.

• Fits bulkier sleeping bags and extra layers
• Zipped entry for easy access
• Integrated mesh panel for ventilation to reduce condensation

🎒 Lightweight & Packable for Fast Adventures

Weighing approximately 547g (1 lb 3 oz), this bivy is ideal for those traveling light without sacrificing protection.

• Packs down to approx. 25cm × 12cm
• Compact enough for backpacks, bikepacking setups, and emergency kits

🏔️ Built for Harsh Environments

Designed for serious outdoor use, the Rab Storm Bivi is ideal for:

• Mountaineering and alpine expeditions
• Backpacking and thru-hiking
• Bikepacking and minimalist travel
• Emergency shelter situations

Its tough materials and reliable waterproofing make it a go-to shelter for demanding conditions.

📏 Product Specifications

• Product: Rab Storm Bivi (SS22)
• Capacity: 1 person
• Weight: ~547 g / 1 lb 3 oz
• Packed Size: ~25 cm × 12 cm
• Top Fabric: 40D ripstop nylon with PU coating (10,000mm waterproof rating)
• Base Fabric: 70D nylon with PU coating (reinforced durability)
• Breathability: ~10,000 g/m²/24h MVTR
• Entry: Zipped opening with mesh ventilation panel
• Finish: Fluorocarbon-free DWR coating

🌄 Why You’ll Love It

✔ Fully waterproof and windproof storm protection
✔ Durable base for rough ground and alpine terrain
✔ Lightweight and packable for minimalist travel
✔ More spacious than typical bivy bags
✔ Ideal backup shelter or ultralight primary sleep system

🔥 Stay ready for any conditions with the Rab Storm Bivi - a durable, waterproof bivy shelter built for serious adventures where reliability and packability matter most.