Smooth T-Shirt Bras Built to Disappear Under Clothes
Wacoal's Baseline Collection is designed to make everyday dressing effortless. Silky-smooth fabric and seamless stretch foam cups create a clean, streamlined look under T-shirts, knits, and fitted tops, while light padding provides opacity and gentle shaping.
Both styles offer mid coverage, fully adjustable straps, and encased back elastic for a comfortable, customized fit. With sizes from 30-38 bands and A-DDD cups, the Baseline Collection offers a versatile range of fit options, including smaller band and cup sizes.
A Versatile Collection That Serves Smaller Breasts
When you are shopping for bras for a small bust, the cup matters more than the padding. A cup that is cut to be filled out will wrinkle or stand away at the top on a smaller or shallower chest, and that gap is what makes a bra show under a fitted top. A cup with a structure of its own does not have that problem.
The mid coverage foam cup used across Baseline is built to hold its round shape on its own, so an A cup gets the same smooth line as a D. If you want more definition under close fitting tops, choose the underwire style. If you prefer a softer finish, choose the wire free style. Either way the shaping comes from the cut of the cup rather than from added volume.
The Baseline Collection Includes:
Baseline T-Shirt Bra
For added structure, this seamless underwire style uses soft stretch foam cups to create a natural round shape while keeping the finish smooth under clothes. Shop the Baseline T-Shirt Bra.
Baseline Wire Free T-Shirt Bra
Prefer no wire? Built-in under-bust panels and flexible side boning provide support and shaping while maintaining the same silky, seamless feel. Shop the Baseline Wire Free T-Shirt Bra.
From everyday T-shirts to fitted tops, Baseline is made to be the bra you reach for on repeat.
Not sure about your size? Check out our Bra Fit Calculator to help find your best fit.
FAQs
What makes Baseline bras good under T-shirts?
Baseline bras feature silky-smooth fabric and seamless stretch foam cups designed to create a clean, streamlined look under T-shirts, fitted tops, and other close-fitting clothing.
Are Baseline bras padded?
Yes. Baseline bras are lightly padded to provide opacity, gentle shaping, and a smooth look under clothing without the feel of heavy padding.
What is the difference between the Baseline underwire and wire free bras?
The Baseline T-Shirt Bra uses an underwire for added structure and shaping. The wire free style uses supportive under-bust panels and flexible side boning to provide support without an underwire.
What sizes are available in the Baseline Collection?
Baseline bras are available in band sizes 30-38 and cup sizes A-DDD, offering a broad range of fit options, including smaller band and cup sizes.
Which Baseline style is best for a small chest?
Both styles suit a smaller chest, so it comes down to the finish you want. The underwire style gives more definition under close fitting tops, and the wire free style gives a softer shape. Both are offered in 32A, 34A and 36A and both use the same mid coverage foam cup.
What breast shapes work well with Baseline bras?
The Baseline T-Shirt Bra is recommended for Round, Shallow Top/Full Bottom, and Petite breast shapes. The Baseline Wire Free T-Shirt Bra is also recommended for East/West shapes.
Do Baseline bras have adjustable straps?
Yes. Both Baseline styles feature fully adjustable straps so you can customize the fit and support.
USA
Canada
