


MST - Pump Killer 550gMST Pump Killer 550g Die Formel MST Pump Killer ist entwickelt, um die Mdigkeit nach dem Training zu reduzieren, Aktivitt, Leistung, Kraft und Ausdauer zu steigern, die Konzentration und die Bereitschaft fr Arbeit mit hoher Belastung zu verbessern. MST PUMP Killer vor dem Training erhht die Reserven von Proteinen in den Muskeln und versorgt sie mit zustzlicher Energie, die fr die aktive Arbeit bentigt wird. Die Formel MST PUMP Killer ist mit
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4.4 ★★★★★
Based on 1492 reviews
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Product Reviews
★★★★★ 5
Nice comfortable underwear
Size: Large, Color: A-multicolored-4 Pack, Size: Large, Color: A-multicolored-4 Pack
Good fit, comfortable and plenty of room for the equipment.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 4
Quality control
Size: Large, Color: Black-4 Pack, Size: Large, Color: Black-4 Pack
They did fit well but now the waist band is coming off on all of them. Quality control needs to look into this problem. I would have bought them again if they solve this problem.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Great!
Size: Medium, Color: Multicolored19-4 Pack
I have ordered three packages of these over the years. They are solidly made and withstand washing and drying without the color fading and elastic band stretching. They are sized correctly and are super comfortable.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Cute, colorful underpants
Size: Medium, Color: A-multicolored-4 Pack
Bought these for my fiance because his old (other brand) ones were getting very tired. The price was great and they are brightly colored, which I get a kick out of. These do not bunch up while he's sitting, moving around, or pulling up his pants, and are comfortable with pants with a snugger fit around the legs and pelvis. They are soft, breathable, and durable, and have withstood numerous washes without an inkling of fading, tearing, and wear.
I had some difficulties with the shipping and the original order never arrived, but this was immediately resolved after one contact with customer service. They were very responsive and sent out a fresh batch minutes later, which arrived very quickly and without any issue.
Overall, impressed with the quality of both the underpants and the customer service.
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Reviewed in the United States on December 11, 2023
★★★★★ 3
KIND OF BAGGY
Size: Large, Color: A-multicolored-4 Pack
I guess I'm not built quite like the guy in the photo. I found these to be a little baggy. I buy briefs because I don't want baggy. They were, however, comfortable enough. I liked the wider waist band and the elastic was fine. I wouldn't buy them again though.
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Reviewed in the United States on July 27, 2024