Amplitude AmIII Down Double Sleeping Bag - Sea To Summit UK

Amplitude AmIII -15°c Double

Comfort and versatility for two! Ideal long trips when shaving weight is not your highest priority.


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Insulation Type
30D Nylon Shell & 20D Nylon Lining
Fill Power
ULTRA-DRY Down® 750+ Loft
Fill Weight
Double: 1000g
Temp Rating
EN -8°c Comfort to -15°c Lower
Double: 1780g
Selling Price

Designed for couples of us who love space, versatility and plush comfort, the Amplitude III™ is ideal for outdoor adventures that return to the same camp site each evening, for car camping road trips, crag-hopping van life or hut-based expeditions.

  • Spacious contoured rectangular shape with enough room for two
  • Multi-zip configuration converts bag to a standalone quilt for warmer conditions
  • Vertical chest baffles prevent down migration and cold spots
  • Oversized draft tubes prevent heat loss through zippers
  • Generously sized hood and dual cord adjustment for maximum warmth retention
  • Simple adjustable webbing loop system connects sleeping mat to bag
  • Large internal security pocket


Lifetime Guarantee

Aeros Premium Deluxe Pillow

Whether in transit or the back country, our Aeros™ range of lightweight and compact inflatable pillows will award you a comfortable sleep.


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