Keep water flowing in cold winter months and cool in the heat of the summer—this four-season insulated kit is ideal no matter the season. Featuring closed-cell foam, a heat-reflective coating, removable bite valve sleeve and easy-carry attachment loops. Fits reservoirs up to 3 litres.
Heat-reflective, closed-cell foam sleeve offers maximum insulation
Tailored insulated reservoir sleeve with attachment loops
https://www.ospreyeurope.com/shop/fi_en/osprey-insulation-kit11039Four Season Insulation Kit - Silverhttps://cdn.ospreyeurope.com/shop/media/catalog/product/f/o/four_season_insulation_kit_f20.jpg4545EURInStock/Accessories/Hydration Backpacks & Reservoirs/Reservoirs & Spares/Emergency Services Day/Accessories/Backpacking Accessories4661333407<div class="pdp-details-section-wrapper">
<div id="pdp-details-main-copy" class="pdp-details-copy hide-read-more">Keep water flowing in cold winter months and cool in the heat of the summer—this four-season insulated kit is ideal no matter the season.</div>
</div> <div data-content-type="row" data-appearance="contained" data-element="main"><div data-enable-parallax="0" data-parallax-speed="0.5" data-background-images="{}" data-element="inner" style="justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;"><div data-content-type="text" data-appearance="default" data-element="main" style="border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;"><div class="pdp-details-section-wrapper">
<div id="pdp-details-main-copy" class="pdp-details-copy hide-read-more">
<p>Keep water flowing in cold winter months and cool in the heat of the summer—this four-season insulated kit is ideal no matter the season. Featuring closed-cell foam, a heat-reflective coating, removable bite valve sleeve and easy-carry attachment loops. Fits reservoirs up to 3 litres.</p>
<ul class="feature-list">
<li>Heat-reflective, closed-cell foam sleeve offers maximum insulation</li>
<li>Tailored insulated reservoir sleeve with attachment loops</li>
<li>Insulated hose protected from direct sunlight</li>
<li>Zippered bite valve insulation sleeve helps keep mouthpiece free of ice</li>
<li>Removable bite valve sleeve for summer use</li>
<li>Reservoir must be purchased separately</li>
</ul>
</div>
</div></div></div></div>EUR00add-to-cartdescription:<div data-content-type="row" data-appearance="contained" data-element="main"><div data-enable-parallax="0" data-parallax-speed="0.5" data-background-images="{}" data-element="inner" style="justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;"><div data-content-type="text" data-appearance="default" data-element="main" style="border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;"><div class="pdp-details-section-wrapper">
<div id="pdp-details-main-copy" class="pdp-details-copy hide-read-more">
<p>Keep water flowing in cold winter months and cool in the heat of the summer—this four-season insulated kit is ideal no matter the season. Featuring closed-cell foam, a heat-reflective coating, removable bite valve sleeve and easy-carry attachment loops. Fits reservoirs up to 3 litres.</p>
<ul class="feature-list">
<li>Heat-reflective, closed-cell foam sleeve offers maximum insulation</li>
<li>Tailored insulated reservoir sleeve with attachment loops</li>
<li>Insulated hose protected from direct sunlight</li>
<li>Zippered bite valve insulation sleeve helps keep mouthpiece free of ice</li>
<li>Removable bite valve sleeve for summer use</li>
<li>Reservoir must be purchased separately</li>
</ul>
</div>
</div></div></div></div><div data-content-type="row" data-appearance="contained" data-element="main"><div data-enable-parallax="0" data-parallax-speed="0.5" data-background-images="{}" data-element="inner" style="justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;"><div data-content-type="text" data-appearance="default" data-element="main" style="border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;"><div class="pdp-details-section-wrapper">
<div id="pdp-details-main-copy" class="pdp-details-copy hide-read-more">
<p>Keep water flowing in cold winter months and cool in the heat of the summer—this four-season insulated kit is ideal no matter the season. Featuring closed-cell foam, a heat-reflective coating, removable bite valve sleeve and easy-carry attachment loops. Fits reservoirs up to 3 litres.</p>
<ul class="feature-list">
<li>Heat-reflective, closed-cell foam sleeve offers maximum insulation</li>
<li>Tailored insulated reservoir sleeve with attachment loops</li>
<li>Insulated hose protected from direct sunlight</li>
<li>Zippered bite valve insulation sleeve helps keep mouthpiece free of ice</li>
<li>Removable bite valve sleeve for summer use</li>
<li>Reservoir must be purchased separately</li>
</ul>
</div>
</div></div></div></div>Please Select...HydrationUnisexNo
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60%
Not for extreme cold
I bought this for cross-country skiing, ice fishing, and winter hiking in Finland. It does very well until around -10C/14F but then starts to have trouble. Even at -10C it'll freeze if you're outside for more than a couple hours, and at -15C/5F I have to keep the bite valve under my shirt, even though it's in the cover. In temperatures closer to freezing it works just fine, but for very very cold temperatures you should have a backup plan for accessing your water.
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