GSI Outdoors Infinity Backpacker Mug

Marsoni

M251S

$15.95

Get it in 3 business days with 1 day shipping. Friday, May 29

GSI Outdoors Infinity Backpacker MugOur favorite mug, now in the GSI Eco line, leads the way when it comes to materials and manufacturing. Made from BPA free, non leaching polypropylene and wrapped in a recycled plastic (rPET) cloth. The insulated sleeve, non slip footing, and sealable sip through lid keep the contents warm (or cold) and free from spills, trail dust, and critters. A sturdy webbing handle gives a great grip and collapses flush for compact storage in your pack. The

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I love these quarter-zip pullovers. I bought this one as a gift, but I personally own two others myself, which should say a lot. They’re comfortable, lightweight, and extremely versatile. I wear mine for golf, casual office days, and layered when it’s cooler out—they pair well with just about anything. For the price point, they really can’t be beat. The look and feel are comparable to options that cost significantly more. Great value, great performance, and a sharp, clean style. I’ll likely keep buying more.

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Reviewed in the United States on February 19, 2026

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Jerry N.

Grantham, US

★★★★★ 4

GOOD QUALITY

Color: Dark Khaki Melange, Size: Large

GOOD FIT AND VERY GOOD QUALITY I WILL BE BYING MORE.

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Reviewed in the United States on May 3, 2026

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JonC

Port Orchard, US

★★★★★ 5

Great color and material

Color: Light Blue Melange, Size: Large

Maelreg is becoming my goto for clothing. They use really good quality material and a great look and price. Maelreg continues to impress me, I've now purchased 6-8 of their shirts/hoodies and 2 pair of joggers. I really like them all.

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Reviewed in the United States on February 20, 2026

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ChotoKnox

Pawtucket, US

★★★★★ 5

Hubby’s Fave!

Color: Wistful Mauve Melange, Size: XX-Large, Color: Wistful Mauve Melange, Size: XX-Large

My husband lives in these comfortable performance quarter zips by Maelreg! He says they’re warm in the cool months, they fit great, can be worn with just about any slacks, joggers, or shorts. They come in many different colors and they fit the tall guys like my husband, whose 6’4” He orders 2XL.

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Reviewed in the United States on April 30, 2026

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Jordan

Pawtucket, US

★★★★★ 5

Love them!

Color: Lavender Melange, Size: X-Large

True to size I wear a 2XL they fit great material is nice. perfect for the golf course or business casual. I have 4 different colors and always get compliments! Will definitely get more.

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Reviewed in the United States on May 10, 2026