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Sea To Summit Delta Insul Mug

4.0 out of 5 stars 38 customer reviews

Price: $16.95 - $54.19
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Blue
  • nylon
  • Sipping lid with leakproof seal and hang loop, Cool-to-the-touch rim
  • Food grade Nylon 66, BPA-free
  • ThermoSkin non-absorbing insulation sleeve
  • Odor and stain resistant
  • Protex hex pattern base disperses heat

Product Description

The lightweight Delta InsulMug features a ground-breaking advance in thermal insulation: a molded non-absorbing closed-cell Thermoskin. A snug-fitting, self-draining lid allows drip-free sipping. Ideal for expeditions, camping and daily commuting.

Product Details

  • Product Dimensions: 6 x 9 x 4 inches ; 4 ounces
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0065J37SM
  • Item model number: SDIM
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (38 customer reviews)
  • Amazon Best Sellers Rank: #131,160 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: 16-Ounce/473 mlColor: Green Verified Purchase
Worst lid ever...I wanted to like this cup. It looks cool, it has a nice feel in the hand, it holds 16 oz, and it weighs 4 oz. But, then, there is the lid. Total dribble cup. No matter what i do, the cup leaks from a bad seal. Even if it made a tight seal, the shape of the lid/drinking hole is awkward and uncomfortable to use. I never thought of a cup as uncomfortable until i got this one. i now use it at my desk without the lid, but i never take it camping or in my car.
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We took this mug and a similar GSI one on a recent wilderness camping trip. The GSI one didn't survive and they were packed the same. The seal on this one was better than the GSI one, too (no problems whatsoever with leakage). We found the nylon cord to be surprisingly helpful, it was comfortable to hold, and definitely kept our beverages hot. Since the GSI one chipped and also didn't create a good seal, we'll be buying another Sea to Summit mug for our next trip. The price here was the same as our local REI store.
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Size: 16-Ounce/473 mlColor: Blue Verified Purchase
Tried to return cup but was 10 days past return, Cup smells horrible and beverage taste as bad as the smell. Washed by hand and dishwasher still unusable. This cup is toxic, must be a bad one as the reviews are good however Im stuck with a lemon.Beware
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Size: 16-Ounce/473 mlColor: Green Verified Purchase
Arrived with a warped lid. Never sealed enough to prevent dribbling when taking a drink from it. The second one we bought eventually did the same after using it a couple times. Seemed the hot liquid caused the lids to swell and buckle. We ended up buying a different Sea to Summit insulated mug and we are still quite happy with it. This style, however was not great.
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Size: 16-Ounce/473 mlColor: Pacific Blue
This cup is a really clever design. Nice ergonomics and construction, but..., you will feel like a 2 year old again when you try to drink from this cup. It kinda sorta works if you really drink carefully, but for something like sipping hot coffee, be prepared to make a mess. There is just something about the shape of the lid that makes it impossible to sip hot liquids without dribbling. I've never run across this before with any other cup. I'm guessing it's the cover/cup seam that runs along the top, which is something I've never seen in any other travel mug. This is such a nice comfy design otherwise, so I hope they eventually redesign to overlap the cup. For something similar, but without the dribble issues, I would recommend an REI plastic travel mug.
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Size: 16-Ounce/473 mlColor: Pacific Blue Verified Purchase
This mug is lightweight and will be perfect for backpacking. It doesn't keep my coffee hot as long as some of my metal travel mugs but the weight makes it great and it keeps my hands warm! Inside of mug is stained from coffee after about a dozen uses.
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Size: 16-Ounce/473 mlColor: Pacific Blue Verified Purchase
Great, lightweight mug. Really does a great job of maintaining the temp of your beverage, hot or cold. Bulky enough that I don't pack it, but it hangs off the pack by a D-ring. The lid fits tightly enough that it doesn't come loose. It holds a perfect, generous amount of drink. I'm so glad I got one. 4 stars only because it takes up a fair amount of space if you were to try to pack it inside. If only there were a way to combine the insulating properties of this mug and the collapsible design of their x-mug.....
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Size: 16-Ounce/473 mlColor: Blue
I'm on my third year with this cup and can say its the best cup I've owned. It keeps beverages warm on snowshoe/winter climbing trips and cool on kayak/ backpack trips. I use my gear hard but take care of it and have never had a problem with leakage or damage to the insulating sleeve. I'm writing this review because I'm on Amazon to buy one for my wife.
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