Warmest1 / 6
Images: Blizzard Protection Systems and its retailers. Used for product identification.
Blizzard Protection Systems
Blizzard 3-Layer Survival Bag
Mountain-rescue kit: three insulating Reflexcell layers vacuum-packed flat.
- Weight
- 385 g
- Thermal
- Insulated
- Packed
- 23 × 11 × 4 cm
Best price found
£40.79
at Medisave · In stock · Inc. VAT
Prices checked 31 October 2026. We may earn a commission on these links.
- Waterproof
- Windproof
- Heat reflective
- Reusable
Specifications
- Weight
- 385 g
- Packed size
- 23 × 11 × 4 cm
- Material
- Triple-layer Reflexcell metallised cellular film
- Thermal claim
- Rated 7.5 tog: insulates, not just reflects
- Open size
- 230 × 80 cm
Pros & cons
- Trapped-air layers give real insulation
- Used by UK mountain rescue and the NHS
- Made in Wales
- Heaviest and bulkiest on test
- Hard to repack after first use
More emergency bivvies
Full comparison →
5 photosBest all-rounderSurvive Outdoors Longer
SOL Emergency Bivvy
The benchmark reflective bivvy: sealed seams, 90% heat return, and a rescue whistle.
- Weight
- 108 g
- Thermal
- High reflective
- Packed
- 13 × 8 × 2 cm
- Waterproof
- Windproof
- Heat reflective
- Whistle included
- Reusable
Full specs, 3 retailers →View DealFrom
£19.99
at Needle Sports
2 photosBest value reflectiveLifesystems
Lifesystems Heatshield Thermal Bag
DofE-recommended metallised bag that packs smaller than a drinks can.
- Weight
- 110 g
- Thermal
- High reflective
- Packed
- 7 × 6 × 6 cm
- Waterproof
- Windproof
- Heat reflective
- Taped seams
Full specs, 3 retailers →View DealFrom
£10.95
at Cotswold Outdoor
10 photosBest for twoLifesystems
Lifesystems Survival Bag
The heavy-duty orange polythene bag every UK mountain leader carries.
- Weight
- 290 g
- Thermal
- Barrier only
- Packed
- 10 × 18 × 3 cm
- Waterproof
- Windproof
- Fits 2 people
- Reusable
Full specs, 3 retailers →View DealFrom
£5.99
at Cotswold Outdoor
