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Calvin Klein Intense Power Micro 3-Pack Boxer Brief

Common questions

Is Calvin Klein Intense Power Micro 3-Pack Boxer Brief healthy?

Calvin Klein Intense Power Micro 3-Pack Boxer Brief scores 12/100 on Scout's independent analysis of ingredients, additives, and lab results — one of the lower scores in Scout's catalog. Calvin Klein Intense Power Micro 3-Pack Boxer Brief scores 12/100.

How does Calvin Klein Intense Power Micro 3-Pack Boxer Brief compare to other underwear?

Calvin Klein Intense Power Micro 3-Pack Boxer Brief ranks #24 of 25 underwear in Scout's independent rankings. The current top score in the category is Organic Jaguar Organic Cotton Boxers at 100/100.

Which ingredients drive Calvin Klein Intense Power Micro 3-Pack Boxer Brief's score?

In Scout's ingredient-by-ingredient analysis, Reprocessed Polyester (88%), Elastane / Spandex (12%), Undisclosed Moisture-Wicking Finish are flagged as ingredients of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Calvin Klein Intense Power Micro 3-Pack Boxer Brief

12 Poor

At a glance

Beneficial ingredients 0
Harmful ingredients 4
Category Underwear
Summary

Calvin Klein Intense Power Micro 3-Pack Boxer Brief scores 12/100. 0% natural fiber. 88% reprocessed polyester and 12% elastane — entirely petroleum-derived synthetics worn against the most absorptive skin on the body. Polyester generates electrostatic charges linked to azoospermia in human studies. Contains undisclosed moisture-wicking chemical finish and adhesive waistband compounds. No OEKO-TEX certification or independent safety testing disclosed.

Key ingredients 4

Reprocessed Polyester (88%)
Very Bad

Recycled PET plastic that sheds microplastics under heat, friction, and moisture — all conditions present in the groin area. Contains residual antimony trioxide catalyst and potential phthalates. Human studies found polyester worn against the scrotum generated electrostatic charges of ~339 V/cm² and caused azoospermia (zero sperm count) in all 14 subjects.

See more about Reprocessed Polyester (88%) →
Elastane / Spandex (12%)
Very Bad

Petroleum-derived polyurethane fiber. A 2025 study found underwear elastane contained BPA, BPS, and BPF at concentrations up to 52,967 ng/g. BPF migrates into sweat at 39.1%, BPS at 25.2% — actively leaching endocrine disruptors through the groin's thin, highly vascularized skin.

See more about Elastane / Spandex (12%) →
Undisclosed Moisture-Wicking Finish
Very Bad

Chemical finish applied to enhance moisture transport. Often involves PFAS (forever chemicals) or fluorocarbon treatments. No disclosure of specific chemicals used. No OEKO-TEX certification to verify safety thresholds.

See more about Undisclosed Moisture-Wicking Finish →
Adhesive Waistband (Infinity Bond)
Bad

Stitch-free waistband bonded with undisclosed adhesive compounds in direct skin contact. Adhesive chemicals may include formaldehyde-based resins or polyurethane hot-melt adhesives that can off-gas or leach with body heat and sweat.

See more about Adhesive Waistband (Infinity Bond) →

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