Down Feather Men

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  • Mens Microlight Alpine Jacket
    Rab
    NOW £148.91 RRP £190.00 | Save £41.09 (22%)
    Reviews (18 Reviews)
  • Mens Microlight Alpine Jacket
    Rab
    NOW £148.91 RRP £190.00 | Save £41.09 (22%)
    Reviews (18 Reviews)
  • Mens Microlight Alpine Jacket
    Rab
    NOW £148.91 RRP £190.00 | Save £41.09 (22%)
    Reviews (18 Reviews)
  • Mens Microlight Alpine Jacket
    Rab
    NOW £148.91 RRP £190.00 | Save £41.09 (22%)
    Reviews (18 Reviews)
  • Size
    Mens Extrem Micro Down Jacket 2.0 SALE
    Berghaus
  • Size
    Mens Extrem Micro Down Jacket 2.0 SALE
    Berghaus
  • Mens Cerium LT Hoody
    Arcteryx
    NOW £256.00 RRP £320.00 | Save £64.00 (20%)
    Reviews (4 Reviews)
  • Mens Cerium LT Hoody
    Arcteryx
    NOW £256.00 RRP £320.00 | Save £64.00 (20%)
    Reviews (4 Reviews)
  • Mens Cerium LT Hoody
    Arcteryx
    NOW £256.00 RRP £320.00 | Save £64.00 (20%)
    Reviews (4 Reviews)
  • Mens Cerium LT Hoody
    Arcteryx
  • Mens Cerium LT Hoody
    Arcteryx
    NOW £256.00 RRP £320.00 | Save £64.00 (20%)
    Reviews (4 Reviews)
  • Mens Microlight Vest (Gilet)
    Rab
    NOW £112.50 RRP £125.00 | Save £12.50 (10%)
    Reviews (5 Reviews)
  • Mens Microlight Vest (Gilet)
    Rab
    NOW £112.50 RRP £125.00 | Save £12.50 (10%)
    Reviews (5 Reviews)
  • Mens Helium Insulated Jacket
    Jack Wolfskin
    NOW £89.95 RRP £130.00 | Save £40.05 (31%)
    Reviews (6 Reviews)
  • Mens Helium Insulated Jacket
    Jack Wolfskin
    NOW £89.95 RRP £130.00 | Save £40.05 (31%)
    Reviews (6 Reviews)
  • Mens Continuum Jacket SALE
    Rab
    NOW £197.91 RRP £255.00 | Save £57.09 (22%)
    Reviews (1 Customer Review)
  • Mens Continuum Jacket SALE
    Rab
    NOW £197.91 RRP £255.00 | Save £57.09 (22%)
    Reviews (1 Customer Review)
  • Size
    Mens Mcmurdo SALE
    The North Face
    NOW From £225.00 RRP £380.00 | Save £155.00 (34%)
    Reviews (3 Reviews)
  • Mens Mcmurdo SALE
    The North Face
    NOW £225.00 RRP £380.00 | Save £155.00 (41%)
    Reviews (3 Reviews)
  • Men's Atmosphere Jacket SALE
    Jack Wolfskin
    NOW £80.00 RRP £140.00 | Save £60.00 (43%)
  • Mens Microlight Jacket
    Rab
    NOW £148.91 RRP £170.00 | Save £21.09 (12%)
    Reviews (5 Reviews)
  • Mens Microlight Jacket
    Rab
    NOW £148.91 RRP £170.00 | Save £21.09 (12%)
    Reviews (5 Reviews)
  • Mens Microlight Jacket
    Rab
    NOW £148.91 RRP £170.00 | Save £21.09 (12%)
    Reviews (5 Reviews)
  • Mens Microlight Jacket
    Rab
    NOW £148.91 RRP £170.00 | Save £21.09 (12%)
    Reviews (5 Reviews)

Fill Power measures how well the down lofts. The higher the loft the higher the fill power rating. Goose down fill power ratings in the outdoor industry generally vary between 600 and 850. Duck down fill power generally varies between 500 and 700.

Fill power affects the loft of the down and so crucially it measures the approximate warmth of a down item. For example a sleeping bag with 600g of 800 fill power down will be warmer than one with 600g of 600 fill power down. So a lower amount of a higher fill power down can be used to make a lighter bag of the same warmth.

The cluster ratio is the proportion of down to feathers. Processing the down removes almost all feathers, but it is impossible to get 100% down without any feather. 

Fill weight is the total amount of down used in a complete item. This is generally measured in grams. Fill weight along with baffle construction is one of the largest influences on the overall warmth of the item. Very generally speaking the more down inside the item, the warmer it will be - although this is also largely influenced by fill power and cluster ratios.

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