After doing some research, although in retrospect, I may have wanted to do the research earlier. GSI has always had some of the more reliable gear and this product is no different. The cup itself is made out of polypropelene which doesn't leach in either direction and is bpa free and safe! After having used it several time, going back and forth from boiling hot coffee to iced cold water, I can tell you that the coffee taste does not leach into the cup!

Is there a replacement oring or seal for this?

Just buy a new one if you’ve wore it out.

How can I wash the outside sleeve?

You could hand wash with mild soap or put through washer with cold water but I would not recommend putting it in the dryer. Towel or air dry for best results and minimum wear/tear.

If by stackable you’re asking if they’ll nest together, then no, they won’t.

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Infinity Backpackers Mug

Product ID: 305214095

Details

Brand
GSI Outdoors
Color
Heathered Blue
Special Feature
light_up
Style
Modern
Theme
food

☕Heat resistant

🌍Eco-friendly

🧳Lightweight

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€ 24.99

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

Sip Sustainably! 🌿

VERSATILE USE - Ideal for hot drinks at home or on the go.
ADVENTURE AWAITS - Perfect for travel and outdoor escapades.
COMPACT CONVENIENCE - Foldable and lightweight for easy packing.
SUSTAINABLE SIPPING - Crafted with eco-conscious materials for guilt-free enjoyment.
DURABILITY MEETS DESIGN - Break-resistant and stylish for the modern explorer.

The GSI Outdoors Infinity Backpacker Mug is a stylish, lightweight, and eco-friendly mug designed for hot drinks. Made from heat-resistant, BPA-free materials, it’s perfect for both home use and outdoor adventures. With its break-resistant design and foldable feature, this mug is the ultimate companion for the modern explorer who values sustainability and convenience.

Specifications

Brand	GSI Outdoors
Color	Heathered Blue
Special Feature	break_resistant, light_up, Lightweight, freezer_safe, non-slip, foldable
Style	Modern
Theme	food
Recommended Uses For Product	Travel, Home
Included Components	GSI Outdoors 75282 Infinity Backpacker Mug Blue
Specific Uses For Product	Hot Drinks
Shape	Round
Pattern	Solid
Product Care Instructions	Machine Wash, Hand Wash Only
Age Range (Description)	Adult
Material Feature	Heat resistant
Reusability	Reusable
Unit Count	1 Count
Product Dimensions	4"W x 4.6"H
Material Type Free	BPA Free
Number of Items	1
League	ncaa
Manufacturer	GSI Outdoors
UPC	090497752827
Size	One Size
Item Package Dimensions L x W x H	9.57 x 5.31 x 4.57 inches
Package Weight	0.12 Kilograms
Item Dimensions LxWxH	4 x 4 x 4.6 inches
Brand Name	GSI Outdoors
Model Name	75282
Suggested Users	unisex-adult
Part Number	75282
Model Year	2021

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