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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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View our full returns policy here.
Availability:
In Stock.
Arrives
Saturday, Nov 7
Recently Viewed
At a glance
- Condition
- New
- Size
- Small
- Color
- 3 Black, 2 Grey Heather, 2 White
- Model
- NB4003 900
- Weight
- 1 lb
- Material
- Cotton
- Additional Features
- Breathable
Description
The Calvin Klein original—first introduced in 1981, the world’s most iconic mens underwear is timeless in pure cotton with a moisture-wicking finish for the ultimate in comfort.
Specs 26
| Item Weight | 1 Pounds |
|---|---|
| Item model number | NB4003 900 |
| Department | mens |
| Manufacturer | Calvin Klein |
| Brand Name | Calvin Klein |
| Additional Features | Breathable |
| Age Range Description | Adult |
| Unit Count | 7 Count |
| Number of Items | 7 |
| UPC | 790812487761 |
| Style Number | NB2440-900-S |
| Manufacturer Part Number | NB2440 |
| Item Type Name | Boxer Briefs |
| Color | 3 Black, 2 Grey Heather, 2 White |
| Style Name | Cotton Classics 7-pack Boxer Brief |
| Pattern | Solid |
| Rise Style | Mid |
| Bottom Style | Boxer Briefs |
| Fit Type | Regular |
| Material Type | Cotton |
| Fabric Type | 100% Cotton |
| Product Care Instructions | Machine Wash |
| Apparel Fabric Weight Class | Lightweight |
| Apparel Fabric Stretch | Medium Stretch |
| Fit to Size Sentiment | True to Size |
| Size | Small |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 7
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
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Top Amazon Reviews
Very good
Size: Large
Color: 7 Black
Great quality, less chafing if you have any problems with that on other underwear
Reviewed in the United States on June 3, 2026 by nate
Very comfortable
Size: Large
Color: 3 Black, 2 Grey Heather, 2 White
Great fit, comfortable and price was pretty good.
Reviewed in the United States on June 6, 2026 by fzahirovic
Very good quality
Size: X-Large
Color: 7 Black
High quality מומלץ
Reviewed in the United States on May 28, 2026 by Ak
The Definitive "Classic" Fit—Pure Cotton Comfort for Everyday Wear
Size: Large
Color: 3 Blue Depths, 2 Boardwalk Blue, 2 Water...
Fit & Fabric Analysis: I’ve been wearing these for [Time Period], and it’s important to know that these are the 100% Pure Cotton versions. If you are used to the CK "Stretch" line, these feel different—they are much more breathable and airy, which is great for sleeping or long office days, but they don't "hug" the leg quite as tightly. Shrinkage: I found that these did shrink slightly in the first wash (Warm wash/Medium dry). If you are at the top end of your size, you might want to size up. Rise: These are a true full rise. They sit comfortably above the hip, providing full coverage without feeling restrictive.
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Reviewed in the United States on February 7, 2026 by Viral Fixes Daily
Shrinks
Size: Small
Color: 3 Blue Depths, 2 Boardwalk Blue, 2 Water...
The color looks great at first, but it tends to wash off and lightly stains other clothes. After the first wash, it also shrank slightly, which was disappointing. The fit is a bit longer than other Calvin Klein underwear I've purchased. It’s still comfortable, but the sizing and color quality could be better. Overall, not bad—but not quite up to the usual Calvin Klein standard.
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Reviewed in the United States on October 20, 2025 by XYZ
Great to buy
Size: Large
Color: 3 Blue Depths, 2 Boardwalk Blue, 2 Water...
Good product and comfortable. Correct size
Reviewed in the United States on June 7, 2026 by Arzoo Patel
Nice
Size: X-Large
Color: 7 White
Good quality
Reviewed in the United States on May 24, 2026 by florencia
😬 😬
Size: Medium
Color: 7 Black
Not 100% cotton, waist band is loose and definitely not for ppl with above average package ✅
Reviewed in the United States on April 21, 2026 Reviewed in the United States on April 21, 2026 by Tiffany Vice