Is the Jack Adams Modal Bikini Brief worth it?

At $9.99 at Amazon as of November 4, 2026, it is a low-cost way to try a cotton-modal brief. The 4.8 out of 5 rating from 89 ratings suggests most buyers are satisfied.

Does it run true to size?

No. The product notes say it runs large, so consider sizing down from your usual brief size.

It is 53% cotton, 35% modal and 12% elastane, with a 100% cotton gusset lining. The modal is Lenzing Tencel.

Is it low rise or medium rise?

The product page describes a low rise below the natural waistline with a high leg cut, though the spec list calls it a medium rise waist.

How should I wash it?

It is machine washable. Wash with like colors and avoid high heat to protect the elastane and modal.

When is the best time to buy?

Only one new price is tracked, $9.99 at Amazon as of November 4, 2026, so there is no recent low to wait for. Check back for price drops.

Where is the Modal Bikini Brief cheapest?

At Amazon, for $9.99, as of our latest check.

Where can I buy the Modal Bikini Brief?

4 stores we checked sell it, including Amazon, Jack Adams, Underwear Expert, CULTUREEDIT.

Modal Bikini Brief: lowest price $9.99 at Amazon

Q: What do buyers say about the Modal Bikini Brief?

Rated 4.8 out of 5 from 89 ratings.

What reviewers say

Rated 4.8 out of 5 from 89 ratings, the brief is well received for its soft fabric and comfortable fit. The main caveat buyers raise is sizing, since the brief runs large.

Pros

Soft, smooth modal fabric
Comfortable all-day wear
Flat waistband under slim clothing

Cons

Sizing runs large
Fit may feel loose for some buyers

From Jack Adams

Made in Portugal from Lenzing Tencel Modal fabric
Supremely soft, breathable and hypoallergenic
Flexible elasticated waistband with self-covered fabric
Supportive fitted shape ideal under slim trousers and skinny jeans
High leg cut, low rise below the natural waistline
Contoured pouch, no fly

Sizes: S, M, L, XL
Materials: 95% Modal, 5% Elastane
Fit: Bikini brief; high leg cut; low rise, falling below the natural waistline; no fly; contoured pouch; supportive fitted shape
Sizing: True to size. Model is 6'1" and wears a size medium.
Care: Machine wash cold water. Do not bleach. Hang to dry.
Shipping: Free shipping for US orders over a stated threshold; discreet packaging in a plain poly bag or brown box.

About the Modal Bikini Brief

The Modal Bikini Brief enhances your comfort and leaves you feeling like you have nothing on all day! Our popular Modal Bikini Briefs have been made in Portugal from the finest Lenzing ™ Tencel Modal fabric, which is prized for its supremely melt to-your-skin soft feel, breathability, and hypoallergenic qualities.

This pair has a flexible elasticated waistband and a supportive fitted shape that's ideal for wearing beneath slim trousers and skinny jeans. Once you've experienced their naturally perfect fit, you'll never want to wear anything else. Shop the Collection. This pair has a flexible elasticated waistband and a supportive fitted shape that's ideal for wearing beneath slim trousers and skinny jeans. Once you've experienced their naturally perfect fit, you'll never want to wear anything else. Shop the Collection.