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Overbags & Filler Bags

Combine with down clothing and / or your existing sleeping bag to create a versatile, lightweight, and economical sleep system.

Greenlandic Down Overbag
A Semi-Rectangular Down Overbag to fit over our Icelandic or Greenlandic bags to boost their warmth by an additional 23°C. A -5°C sleeping bag in its own right.
from £526.00
940g
-5°C
M.Degree° Overbag 'K'
Our lightest-ever Overbag, boosting your sleeping bag's warmth by 20°C. A 0°C sleeping bag in its own right.
from £590.00
480g
0°C
Filler Down Sleeping Bag: 'K Series'
A lightweight liner that boosts your sleeping bag's warmth by 10°C. On its own, the lightest of sleeping bags. A PHD 'K Series' product: warmth to weight at the limit of possibilities.
from £302.00
240g
15°C
Ready Made: Filler Sleeping Bag: 'K Series'
Ready made version of this lightweight liner that boosts your sleeping bag's warmth by 10°C. Ships within 5 working days.
from £302.00
240g
15°C
Hispar Overbag
Used in combination with your lightweight Hispar bag to boost its warmth by 24°C. A roomy stand-alone bag in its own right too.
from £563.00
900g
-6°C
Hispar Down Overbag: K Series
Warmth to weight taken to the limit. 'K Series' version of a bag used to boost the warmth of your existing sleeping bag by 24°C. Can be used as a stand-alone too.
from £688.00
710g
-6°C
Thinsulate Overbag
Synthetic-filled overbag for long Arctic expeditions. To protect and boost your down-filled expedition bag.
from £258.00
1050g
N/A
Minim Overbag
Used in combination with your lightweight Minim bag to boost its warmth by 23°C. A roomy stand-alone bag in its own right too.
from £392.00
780g
-5°C
Zeta Primaloft Overbag
Used in combination with your Zeta bag to boost its warmth by 24°C. This Specialised Primaloft-filled overbag is also cut to fit over our Ultra K, Minimus and Minim 400 down sleeping bags.
from £335.00
870g
-4°C