Cold. Hot.
Perfectly Yours.
Premium insulated drinkware engineered to keep cold drinks icy for 24+ hours and hot drinks steaming for 12+. Every pour, every time.
Trusted by 14,000+ customers
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On orders over $30
Lifetime Guarantee
On Pro Series products
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Our Collection
Featured Products
Every Frostline product is engineered for one thing: keeping your drink exactly right, all day long.
20oz
Arctic Slim Tumbler
14oz
Summit Coffee Mug
Only 8 left in stock
32oz
Glacier Hydration Bottle
40oz
Frost Flask
16oz
Alpine Travel Mug
Only 6 left in stock
64oz
Polar Growler
12oz × 2
Chill Stemless Wine Set
Only 9 left in stock
24oz
Pro Series Hydration Bottle
14K+
Happy customers and counting
4.8★
Average rating across all products
Why Frostline
Engineered for the Perfect Temperature
We obsess over materials, insulation science, and lid mechanics so you can simply enjoy your drink — exactly how you want it.
24-Hour Cold Retention
Our triple-wall vacuum insulation technology keeps beverages ice-cold for up to 24 hours — tested in desert conditions.
12-Hour Heat Retention
From morning coffee to afternoon tea, your hot beverages stay perfectly steaming without burning your hands.
Built to Last a Lifetime
Food-grade 18/8 stainless steel that resists rust, dents, and flavor transfer. The Pro Series ships with a lifetime warranty.
Sweat-Free Every Time
Double-wall insulation means no condensation on the outside. Your tables, notebooks, and bags stay dry.
BPA-Free Guarantee
Every Frostline product is 100% free of BPA, BPS, and phthalates. Pure taste, every time.
Designed to Replace Plastic
Each Frostline bottle replaces an estimated 1,460 single-use plastic bottles per year. Better for you, better for the planet.
Limited Time
Get Free Shipping on Any Order Over $30
No code needed. Add any product to your cart and we'll cover shipping — automatically.
Real Reviews
What Our Customers Say
4.8 out of 5 — Based on 14,000+ verified purchases
14,000+
Happy Customers
4.8
Average Rating
98%
Satisfaction Rate
30-Day
Return Window
“I've owned every major brand on the market. Frostline is in a different league. My Arctic Slim keeps coffee hot during my entire 3-hour morning hike. I've recommended these to literally everyone I know.”
Emily Thornton
Outdoor Enthusiast, Denver CO
“As a trainer, I'm hydrating all day long. The Glacier Bottle has been with me through 6-day workout weeks for 4 months. Ice still lasts my entire shift. The build quality is exceptional.”
Marcus Chen
Personal Trainer, San Diego CA
“Bought the wine tumbler set as a birthday gift for my best friend and she loved it so much I bought another for myself. The packaging is gorgeous and the quality is real. White wine stays cold for hours.”
Jessica Rodriguez
Mom & Entrepreneur, Austin TX
“I'm a notorious hot coffee snob. The Summit Mug is the only product I've ever found that keeps my pour-over at the exact right temperature through a 4-hour coding session. Non-negotiable now.”
Ryan Patterson
Software Engineer, Seattle WA
“12-hour shifts mean I need a bottle that works as hard as I do. The Pro Series is the first bottle I've owned that actually earns the premium price tag. Worth every penny and then some.”
Linda Park
Nurse Practitioner, Chicago IL
“Brought the Frost Flask on a 3-day wilderness shoot. Drinks stayed cold the entire time even in 90°F heat. Survived two serious drops with zero dents. This thing is a tank.”
Derek Wilson
Adventure Photographer, Portland OR
FAQ
Frequently Asked Questions
Our standard products keep drinks cold for 24 hours and hot for 12 hours. The Pro Series achieves 36 hours cold and 20 hours hot. Results are based on ASTM F2454 standard testing conditions.
Absolutely. All Frostline products use 100% food-grade 18/8 stainless steel for the interior. This grade is the same used in professional kitchens and is BPA-free, BPS-free, and completely non-reactive — meaning no metallic taste and no chemical leaching.
We offer a full 30-day no-questions-asked return window. If your product arrives damaged or defective, we'll replace it immediately at our expense. The Pro Series includes a lifetime warranty covering manufacturing defects.
Yes — all orders over $30 ship free within the continental United States. Standard shipping typically takes 3-5 business days. Expedited options are available at checkout.
Lids and accessories are dishwasher-safe. We recommend hand-washing the bottles and tumblers to preserve the powder-coat finish for as long as possible, though they will not be damaged by dishwasher cleaning.
The Frost Flask 40oz features our ChillLock airtight lid specifically designed to maintain carbonation. For other Frostline products, we recommend removing carbonation pressure before opening to avoid spillage.