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X-Tumbler™ 12oz with Cool Grip

Pop up a Cool Grip and pick up a piping hot beverage

$12.95

Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. The test produces a Lower rating (for male sleepers) and a Comfort rating (for female sleepers). Both are listed in the features table on the product page.

A unisex sleeping bag with a Lower limit of 14ºF means a man should be comfortable down to air temperatures of 14ºF. The same bag will also have a Comfort limit, in the realm of 27°F, so a woman would be comfortable down to an air temperature of 27ºF. These ratings require a sleeping mat with an R-Value appropriate for expected ground temperatures – without this, the sleeping bag itself is unlikely to keep the sleeper warm enough.

A variety of factors impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag, an appropriately insulating sleeping pad and a liner as a sleep system. For example - if you plan on sleeping in nighttime air temperatures of 27ºF / -3°C, choose a bag with a gender-appropriate rating of 23°F / -5°C, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner.

 

Description

The Cool Grip X-Tumbler was built to keep your hands cool when drinking hot liquids. This is made possible by the Cool Grip unique design that reduces surface temperatures and heat transfer allowing you to hold your hot tea and coffee firmly, without burning your fingers.

In addition, a rigid ring made of glass-reinforced nylon keeps the rim of this medium-sized 12 oz /350 ml tumbler stable. All materials are BPA-free and certified to EU food-grade standards.

Dishwasher Safe

Features

  • Collapsible tumbler with heat protective fins
  • Folds flat to a 5/8” / 15mm thick disc
  • Heat resistant, BPA-free, food-grade silicone
  • Calibrated as a measuring cup
  • Nests with other X-Series products

Technical Features

Food Grade Heat Resistant Silicone (Dinnerware)

Like all materials used in Sea to Summit tableware products, the heat-resistant silicone used in the X-Series is BPA-free. It is certified to both EU and FDA food grade standards, which signifies very low absorption of external materials. It is also heat resistant to 300­ºF and doesn't crack in the cold

BPA Free

These products are all Bisphenol-a (BPA) free, which means you can have peace of mind while eating and drinking from these products. BPA free means that they're a bit more environmentally friendly too!

Tech Specs

Product Details

Best Use
Backpacking, Camping, Overland, Bike Touring
Material(s)
Flexible food grade silicone
Special
Dishwasher Safe | Not Microwave Safe
 
ONE SIZE
CAPACITY
DEPTH
DIAMETER
WEIGHT
11.8 fl oz / 350ml
3 in / 7.6 cm
4 in / 10 cm
2.4 oz / 68 g

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