trail.deals
Nikwax Down Proof

Nikwax Down Proof

Outdoor Vitals · price last verified 39m ago

$14.65
at full price right now
Check price at Outdoor Vitals →

If you buy through this link we may earn a commission. It does not change the price you pay.

Share:RedditBlueskyX

About this product

(Members Receive 10% Instant Credit After Purchasing this Item, LOGIN/SIGNUP to Receive This Benefit )

Nikwax Down Proof 10 oz. / 300ml

Easy to use, safe, high performance wash in waterproofing for down filled clothing and gear.

Adds Durable Water Repellency; reducing weight gain, maintaining the insulation and breathability of down filled items in cold and damp conditions.

Why down items lose their insulating properties when they get wet

Down filled items are used to provide lightweight insulation to keep you warm. The structure of down allows air to be trapped between its filaments and warmed by body heat to provide insulation for the user.

If down gets wet it clumps together. This causes it to lose loft and insulation as it can’t trap air effectively. When wet, down loses all of its insulating properties, as water conducts heat away from the body up to 25 times faster than air. It will also gain weight and its breathability will be significantly reduced; leaving you feeling cold, wet and uncomfortable.

Down filled items are most likely to get sweaty and wet inside when used in damp or wet conditions. Therefore it is important to stop down filled gear from getting wet by applying Durable Water Repellency (DWR). The outer fabric of your down filled item, as well as the down inside, must be maintained to ensure comfort. Through use it will eventually wear off and need to be renewed with Nikwax Down Proof™.

Down is ideal for very cold and dry conditions

Specs

Weight
369 g

Price history

Price has held at $14.65 across 43 checks since Sep 20, 2026.

$15$15

Want deals like this daily?

Published Sep 23, 2026 · Prices are as seen at source and may change.