Terms
    Change Model
  • Tom - Wearing Size: LHeight: 6'0''
    Bottom Size: MTop Size: LWaist: 32Inseam: 32
  • Korren - Wearing Size: 3XHeight: 6'5''
    Bottom Size: 3XTop Size: 3XWaist: 44Inseam: 32
  • Gary - Wearing Size: XLHeight: 6'3''
    Bottom Size: XLTop Size: XLWaist: 36Inseam: 34
  • Peter - Wearing Size: SHeight: 6'0''
    Bottom Size: STop Size: SWaist: 30Inseam: 32
Tom - 6‘0‘’ Wearing Size: L
The O2 Tank
The O2 Tank
The O2 Tank

The O2 Tank

(1,034)

LIMITED TIME OFFER

: $10.98 or 3 FOR $19 TEES AND TANKS
Non-Member: 
$54.95
Core:
Onyx
Limited
Size:
Select an option
Fit: True to Size
Qty: 1
1

LIMITED TIME OFFER

: $10.98 or 3 FOR $19 TEES AND TANKS
After your first purchase, you will be charged $69.95 each month for a Member Credit, unless you “Skip” between the 1st and the 5th. You have 12 months to redeem each credit for any item or outfit up to $100, before the credit expires. Cancel your membership anytime online or by phone.Learn more about our VIP membership
Non-Member: $54.95

AS SEEN ON YOU

Performance in Play
Performance in Play
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Wear It With

Current Item

Vent Mesh

A light-as-air mesh that won't weigh you down on your runs. Made to sit off the skin, it’ll keep you fresh thanks to breathable, sweat-wicking tech.

Vent Mesh

A light-as-air mesh that won't weigh you down on your runs. Made to sit off the skin, it’ll keep you fresh thanks to breathable, sweat-wicking tech.

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1,034 reviews for The O2 Tank
1,034 reviews for The O2 Tank
4.7
98% who purchased recommend it
Overall Fit
Runs SmallTrue to SizeRuns Large

Recent reviews

AI Generated Review Summary

Fabletics customers rave about this tank top's lightweight, breathable material that keeps them cool and dry during intense workouts. They appreciate the relaxed yet flattering fit with great mobility, as well as the simple, versatile style with mesh details for extra ventilation.

Adiel

Size PurchasedM
Color PurchasedOnyx
November 8, 2025

This is my 4th O2 tank top, and the onyx color is ??

Rokari

Size PurchasedM
Color PurchasedBlack
October 1, 2025

A+ fit

Rokari

Size PurchasedM
Color PurchasedOnyx
October 1, 2025

A+ fit
See More Reviews
Our 30 Day Perfect Fit GuaranteeWe’ve got you covered! If the style you ordered doesn’t fit perfectly or you don’t love how it looks, we’ll happily accept returns or exchanges up to 30 days from shipment. 30 Day Fit Guarantee applies to select styles only and excludes Need-Now Prices.