One Size Doesn't Fit All
All measurements are in inches and reflect body measurements. If you are in between sizes, size up for comfort. Got questions? Email us at info@freeflyapparel.com.
Men
Women
Toddler
Youth
| Alpha Sizes | Numeric Sizes | Chest | Waist | Hip | Sleeve |
|---|---|---|---|---|---|
| S | 30–31 | 36–38 | 30–32 | 34–37 | 32–33 |
| M | 32–33 | 38–40 | 32–34 | 37–39 | 33–34 |
| L | 34–35 | 41–43 | 35–37 | 40–42 | 34–35 |
| XL | 36–38 | 44–46 | 38–40 | 43–45 | 35–36 |
| XXL | 40 | 47–49 | 41–43 | 46–48 | 36–37 |
| 3XL | 50–52 | 44–46 | 49–51 | 36–37 |
How to Measure Yourself
-
CHEST
Measure circumference from the widest part around chest, about 1” down from armpit.
-
SLEEVE
With arm slightly bent, measure from center back neck to shoulder, down arm to wrist bone.
-
TRUE WAIST
Measure around your natural waist, narrowest part of your torso.
-
HIP
Measure around the fullest part of your hips.
Free Returns & Exchanges
If you try it and it doesn't fit, no problem. Returns and exchanges are free and easy. Learn More
Men's Bamboo Motion Boxer Brief
Why You'll Love It
Ready for a top drawer refresh? Our Bamboo Motion Boxer Brief is here to replace all your old pairs with an insanely soft, four-way stretch design. Outfitted with natural odor-resistance, they’ll keep you feeling fresh all day long. They’ve been racking up five-star reviews ever since we first launched them, and here’s what the people are saying: “So good, I ended up ordering another batch of six.” “Hands down, the most durable and comfortable boxers I’ve found.” “Feel great from the moment you put them on till you take them off after a long day.” Sold? Us too.
One Size Doesn't Fit All
All measurements are in inches and reflect body measurements. If you are in between sizes, size up for comfort. Got questions? Email us at info@freeflyapparel.com.
Men
Women
Toddler
Youth
| Alpha Sizes | Numeric Sizes | Chest | Waist | Hip | Sleeve |
|---|---|---|---|---|---|
| S | 30–31 | 36–38 | 30–32 | 34–37 | 32–33 |
| M | 32–33 | 38–40 | 32–34 | 37–39 | 33–34 |
| L | 34–35 | 41–43 | 35–37 | 40–42 | 34–35 |
| XL | 36–38 | 44–46 | 38–40 | 43–45 | 35–36 |
| XXL | 40 | 47–49 | 41–43 | 46–48 | 36–37 |
| 3XL | 50–52 | 44–46 | 49–51 | 36–37 |
How to Measure Yourself
-
CHEST
Measure circumference from the widest part around chest, about 1” down from armpit.
-
SLEEVE
With arm slightly bent, measure from center back neck to shoulder, down arm to wrist bone.
-
TRUE WAIST
Measure around your natural waist, narrowest part of your torso.
-
HIP
Measure around the fullest part of your hips.
Free Returns & Exchanges
If you try it and it doesn't fit, no problem. Returns and exchanges are free and easy. Learn More
UPF 50+ Sun
Protection
Quick-Dry
4-Way Stretch
Made of Viscose
from Bamboo
- EricVerified BuyerRated 5 out of 5 stars4 minutes agoReviewingMen's Bamboo Motion Boxer Brief - Slate Slate / MNeed them all
order two pairs. tried them on the moment they got delivered, instantly tried to order more but they are out of stock. will absolutely be replacing all my underwear draw with all free fly
What is your height? 5'10-6'0What is your weight? 180-200What size did you purchase? MFor what activity do you recommend this product? Casual Wear - Ken S.Verified BuyerRated 5 out of 5 stars19 hours agoReviewingMen's Bamboo Motion Boxer Brief - Slate Slate / MThe word is out!
Great fit and comfort. They don’t ride up and the material is great. I just wish they could keep them in stock in all colors so I can nab a few more pairs!
What is your height? 5'10-6'0What is your weight? 160-180What size did you purchase? MFor what activity do you recommend this product? Travel, Work, Running, Hiking, Fishing - Holly G.Verified BuyerRated 5 out of 5 starsYesterdayReviewingMen's Bamboo Motion Boxer Brief - Black Black / LExcellent Quality & Fit
Super soft, great fit, and great quality!
What is your height? 6'1-6'3What is your weight? 180-200What size did you purchase? LFor what activity do you recommend this product? Casual Wear - Jay P.Verified BuyerRated 5 out of 5 starsYesterdayReviewingMen's Bamboo Motion Boxer Brief - Black Black / LGreat product
Very comfortable and doesn’t ride up
What is your height? 5'7-5'9What is your weight? 180-200What size did you purchase? LFor what activity do you recommend this product? Casual Wear - Jay P.Verified BuyerRated 5 out of 5 starsYesterdayReviewingMen's Bamboo Motion Boxer Brief - Slate Slate / LGreat product
Comfortable and doesn’t ride up
What is your height? 5'7-5'9What is your weight? 180-200What size did you purchase? LFor what activity do you recommend this product? Casual Wear - Fred M.Verified BuyerRated 5 out of 5 stars2 days agoReviewingMen's Bamboo Motion Boxer Brief - Fatigue Fatigue / XLBamboo boxer briefs
Comfortable
Nice fit
Light
What is your height? 5'7-5'9What is your weight? 220-240What size did you purchase? XLFor what activity do you recommend this product? Casual Wear, Running, Hiking - TYLER B.Verified BuyerRated 5 out of 5 stars2 weeks agoReviewingMen's Bamboo Motion Boxer Brief - Black Black / XLHow they do it I don’t know but it’s perfect!
I am a saxx underwear guy and have been for years that’s until I ordered these free fly quickly my new favorites and I will be ordering more and won’t wear anything but free fly! Their comfortable and they stay put a very big deal
What is your height? 5'10-6'0What is your weight? 220-240What size did you purchase? XLFor what activity do you recommend this product? Work, Travel, Casual Wear, Fishing, Running - Andrew R.Verified BuyerRated 5 out of 5 stars2 weeks agoReviewingMen's Bamboo Motion Boxer Brief - Vintage Camo Vintage Camo / LGreat fit
Soft and comfortable
What is your height? 5'10-6'0What is your weight? 180-200What size did you purchase? LFor what activity do you recommend this product? Casual Wear