


USphere Prime (C3F8)The Usphere Prime (C3F8) agents are plain microbubbles, containing perfluoropropane (C3F8) with a phospholipid shell. These agents are 1. 1 1. 4m in size, with a concentration of >2. 5x1010 microbubbles ml; each vial contains 0. 8ml. These agents are shipped at room temperature, but may be stored at 2 8oC for up to 6 months. Once activated, using the UltraMix Agitator (a one time purchase) the microbubbles can be used for up to 3 days with >90%
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Your USphere Prime (C3F8) orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Product Reviews
★★★★★ 5
They fit perfect and are super comfy
Size: Large, Color: (001) Black / / White
Very soft and comfy! They are not the thickest to wear during a brutal winter, but they are warm. These are true to size (as recommended by my Amazon account). I loved these pants so much that I got me two more. They look great!
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Reviewed in the United States on February 15, 2026
★★★★★ 5
High quality, good fit
Size: XX-Large, Color: (001) Black / / White
These fit perfectly, not super baggy and lose but definitely not tight. I have larger knees so sometimes tapered legs are too tight on my knees but these are perfect. Waistband is perfect. Thickness is not too hot or too cold. Soft and breathable.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
UA finally got the Tall size right!
Size: Small Tall, Color: (001) Black / / White
I'm 5'7" and 130 pounds. This is second time I've bought joggers from UA, size Small Tall, and OMG I couldn't be happier! UA FINALLY(!) got the Tall size right with these...the first pair I ordered about two years ago were supposedly Tall but shrunk up as soon as I washed and dried them. I like them to hit my ankles and not everyone is 5'4". Flattering fit - these sit at my belly button (not too low not too high) and are fitted not bulky. Material is heavier weight, well made, deep pockets, and perfect for Fall & Winter. After washing and drying with no shrinkage, I ordered another pair while still on sale.
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Reviewed in the United States on February 11, 2026
★★★★★ 5
good quality
Size: X-Small, Color: Black (001)/White
keeps me warm during the cold months when i play golf. tight enough to move around in but not tight at all around the neck. overall a really great product. has kept up for the last 4 years very well
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Fit and Length
Size: X-Large, Color: (401) Royal / / White
Yeah this fits perfectly. Very soft, the color pops, keeps you warm. I use these under my sweatshirts, cable sweaters, and my flannel shirts. For me it's about the arm length and how well the item contours to the body to help with warmth. Thank you for getting this right.
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Reviewed in the United States on February 23, 2026
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