No more 3pm smell
Wear one to the office, then straight to the gym. It flat out doesn't hold odor the way my old cotton tees did.
BL
Ben L.
Verified buyer
Home / Catalogue /Build a Pack
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Build your own pack · Est. 2026
Core One BambooFlex Classic Crew
★★★★★Mix any colors and any sizes in one pack
$85.00$117.00$28.33 / tee · save $32.00
01Choose your pack
3 tees02Pick your size
Sets every tee — change any tee below03Choose your colors
3 teesPre-selected packs
Pick a ready-made combo, or customize each tee yourself below.
Free shipping over $99 · 30-day satisfaction guarantee · Authorization required
Fit guidance
Full size chart from S to 3XL.
150-wash promise
Pills, sags or thins? Replaced free.
Ships in 24 hours
Delivery in 7–14 days. Free shipping over $99.
30-day satisfaction guarantee
Contact support for authorization.
Viscose made from bamboo, blended with combed cotton and a touch of spandex for stretch. The focus is the bamboo fiber, naturally soft, breathable and odor-resistant.
3-Pack · $85.00
$28.33 / tee · save $32.00
Innovation in men’s essentials
BambooFlex Technology
We’ve all owned tees that trap sweat, lose their shape, or feel scratchy before the day is done. So we built the Core One Classic Crew from breathable, bacteria resistant bamboo fiber and cut it to actually fit.
Raw bamboo fiberBamboo viscose knit
Your new favorite tee — for real
Built with every feature you’ve been waiting for in a tee — plus a few extras.
Ultimate comfort
Like wearing silk — soft, breathable bamboo fiber that feels like a second skin.
Breathes with you
No more hot spots. Air keeps moving, so hour fourteen feels like hour one.
Moisture-wicking
Sweat gets pulled off your skin instead of sitting in the fabric.
Odor-neutralizing
Helps resist odor buildup through hour fourteen — no lunchtime funk.
Anti-bacterial & hypoallergenic
Itch-free and gentle — made for skin that reacts to everything else.
Built to fit
Fitted through shoulders and arms, easy at the waist. No box shape.
Stays fresh, wear after wear
Cotton traps sweat against your skin — and that's where the smell starts. Core One bamboo fiber pulls moisture away and naturally resists odor-causing bacteria, so it stays fresh through long days, workouts and everything in between:
Naturally odor resistantWicks sweat off skinNo end-of-day funkFresh gym to officeWear it again tomorrowDries fast, no damp feelStays soft on skin
30-day satisfaction guaranteeAuthorization required before returns
150 washes guarantee
Every Core One tee comes with a 150-Wash Guarantee — 100% shape and fabric retention, lasting up to 3× longer than the cotton tee it replaces. If it pills, sags or thins, we replace it free. Wash-guarantee claims do not require a return.
30-day satisfaction guaranteeAuthorization required before returns
Proven Materials You
Can Feel
- Lint-free fabric — no pilling, no fuzz, no white specks on dark tees.
- Anti-wrinkle by nature — it falls smooth straight out of the bag.
- Breathable weave that moves air instead of trapping heat and sweat.
- Naturally odor-resistant, so you stay fresh from morning to night.
30-day satisfaction guaranteeAuthorization required before returns
Lint-free fabric
The breathability is unreal. I finally stopped sweating through my shirts by noon.
Mark S. Verified buyer
99%less odor-causing
bacteria vs cotton
bacteria vs cotton
Built for sensitive skin
Skin-safe, odor-free, all day long.
01
Antibacterial by nature
Bamboo fiber denies bacteria the damp film they need — odor never gets started.
02
Built for sensitive skin
Round, smooth fiber cross-section. No itch, no rasp, no irritation at the seams.
03
Dry against the skin
Moisture is pulled off you and released at the surface, so nothing sits and sours.
30-day satisfaction guarantee · authorization required
Us vs them
The New Gold Standard
See how Core One bamboo fiber compares to the standard cotton tee on feel, performance and how long it actually lasts.
Cotton teesFabric
Bamboo viscose blend
Basic combed cotton
Odor control
Naturally antibacterial
Traps sweat & smell
Breathability
Thermo-regulating
Holds heat
Wrinkles & lint
Stays smooth, lint-free
Creases, pills, lints
Shape after 150 washes
Holds structure
Sags & shrinks
Sensitive skin
Silk-soft, no itch
Rough on the neck
Guarantee
30-day satisfaction guarantee
Store policy varies
30-day satisfaction guaranteeAuthorization required before returns
Most guys notice it in the first wear.
★★★★★Rated by real buyers| Unedited reviews from verified orders
Fits like it was made for me
Snug in the shoulders, easy over the stomach. Ordered a 6-pack the week after the first one showed up.
MR
Marcus R.
Verified buyer
My skin stopped reacting
Cotton always left me itchy around the collar. Two months in bamboo and nothing — zero irritation.
JK
Jordan K.
Verified buyer
Still looks brand new
Forty washes, tumble dried more than I should admit, and the shoulders haven't sagged a bit.
CD
Chris D.
Verified buyer
Bought the 10-pack
Best price per tee and I basically replaced my whole dresser. One less decision every morning.
SH
Sam H.
Verified buyer
Breathes in the heat
Wore one through a Texas summer and stayed dry. That alone is worth the money.
DP
David P.
Verified buyer
Softer every wash
It gets softer instead of stiffer. Didn't think that was possible in a tee at this price point.
TA
Tom A.
Verified buyer
Zero wrinkles
Straight out of the bag, no iron, looks pressed. I travel with these now instead of button-downs.
EN
Eric N.
Verified buyer
No more 3pm smell
Wear one to the office, then straight to the gym. It flat out doesn't hold odor the way my old cotton tees did.
BL
Ben L.
Verified buyer
Fits like it was made for me
Snug in the shoulders, easy over the stomach. Ordered a 6-pack the week after the first one showed up.
MR
Marcus R.
Verified buyer
My skin stopped reacting
Cotton always left me itchy around the collar. Two months in bamboo and nothing — zero irritation.
JK
Jordan K.
Verified buyer
Still looks brand new
Forty washes, tumble dried more than I should admit, and the shoulders haven't sagged a bit.
CD
Chris D.
Verified buyer
Bought the 10-pack
Best price per tee and I basically replaced my whole dresser. One less decision every morning.
SH
Sam H.
Verified buyer
Breathes in the heat
Wore one through a Texas summer and stayed dry. That alone is worth the money.
DP
David P.
Verified buyer
Softer every wash
It gets softer instead of stiffer. Didn't think that was possible in a tee at this price point.
TA
Tom A.
Verified buyer
Zero wrinkles
Straight out of the bag, no iron, looks pressed. I travel with these now instead of button-downs.
EN
Eric N.
Verified buyer
Customer reviews
4.8Based on 100+ reviews
100% recommend this product
5
19
4
4
3
0
2
0
1
0
GLGlenn L.Verified buyer
I recommend this product
Weight range201 - 225 lbs / 92-102 kg
Usual sizeL
Size purchasedL
Height6'2–6'6 / 186-198 cm
2 hours ago
Fits better than I expected
The cut and the fabric work together better than any tee I've owned. A couple of mates have asked what brand it is, which has never happened to me with a plain t-shirt. I'm no model either — it just sits right.
RRobertVerified buyer
I recommend this product
20 hours ago
5 stars
Great shirts with a great fit.
SSeanVerified buyer
I recommend this product
Yesterday
Exactly what I wanted
Great.
MRMarcus R.Verified buyer
I recommend this product
Weight range176 - 200 lbs / 80-91 kg
Usual sizeM
Size purchasedM
Height5'10–6'1 / 178-185 cm
2 days ago
No odor, and I tested it
Gym at 6, desk until 5, dinner after. I expected to smell by the afternoon and didn't. That's the reason I ordered a second pack. If you sweat a lot, that's the part worth knowing.
JKJordan K.Verified buyer
I recommend this product
Usual sizeXL
Size purchasedL
Height6'2–6'6 / 186-198 cm
3 days ago
Finally fits my shoulders
I'm 6'2" with a bit of a gut, and most tees pick one or the other — either they hang like a tent or they cling at the waist. This one is snug up top and straight through the middle. Sized down like the guide said and it was right.
CDChris D.Verified buyer
I recommend this product
4 days ago
Still no lint after 20 washes
This is the part I didn't buy into when I ordered. No pilling on the chest, no fuzz on the sleeves, and the collar still stands up instead of curling. It looks the same as the day it came out of the bag.
SHSam H.Verified buyer
I recommend this product
5 days ago
Bought the 10-pack, zero regrets
Cheapest per tee, so I went for it. Three are in rotation for work, three for the gym, the rest stay folded. Mornings are one decision shorter.
DPDavid P.Verified buyer
I recommend this product
Usual sizeL
Size purchasedL
6 days ago
Cool in a heat wave
It hit 88 degrees here and I stayed dry all day. Only note: I'd love a tall fit option one day. Everything else is spot on, and I'll be back for the army green.