Absorbent Boxer Briefs (Period Underwear)
OPT
Boxer-type absorbent shorts that hold up to 100ml for regular and large sizes, and up to 45ml for small sizes. These shorts hug your body, making them ideal for sports or active days.
Recommended for: Leakage, stuffiness, and ease of movement during normal to heavy flow
Move freely, even on long outings, with peace of mind. Absorbent boxer briefs provide comfortable condition care during your period.

Achieving both ease of movement and peace of mind.
Supporting comfortable condition care with absorbent boxer briefs.
OPT absorbent boxer briefs are boxer-type shorts with an absorbent function.
Born from the practical knowledge of female athletes, they are designed to be easily incorporated into various scenes such as sports, work, and going out.
The quick-drying and absorbent material and high elasticity support a comfortable fit even on active days.
With an absorbency of up to 100ml for Regular and Large sizes, and up to 45ml for Small sizes, these shorts are easy to wear even on days when you tend to feel stuffy or sticky.
They can be washed and reused, making them a long-lasting item for daily condition care.
■ Recommended for:
・Those who are concerned about underwear on hot and humid days or active days
・Those who often have long work hours or outings
・Those who have continuous desk work or standing work and find it difficult to go to the restroom frequently
・Those looking for comfortable shorts for sports and active scenes
・Those who want to incorporate absorbent shorts as a daily option
■ Recommended features of this product
・Absorbency up to 100ml (Regular/Large sizes; Small is 45ml)
Designed with an absorbent structure, making it easy to wear for long outings.
・Quick-drying and absorbent fabric
Supports a comfortable fit even on days when you tend to feel stuffy or sticky.
・High elasticity and fit
Designed to fit various movements such as sitting, walking, and running.
・Boxer-type design
Less likely to shift and less visible under thin pants.
・Washable and reusable
Can be used for a long time by rotating multiple pairs, offering excellent cost performance.



Why fermata carries OPT
When it comes to underwear during menstruation, you have the freedom to choose not only functionality but also a silhouette and sense of security that suits you. OPT's absorbent boxer briefs offer an option that combines reliable absorbency with the comfortable fit of boxer shorts.
fermata carries OPT because we believe that people should be able to choose what makes them feel comfortable, without being constrained by gender or conventional underwear shapes.
Body: 90% Nylon / 10% Polyurethane, Gusset: 92% Polyester / 8% Polyurethane
・Wash before use.
・Use with other hygiene products as needed, depending on your physical condition.
・Discontinue use if you have any skin abnormalities.
・After use, wash promptly and store in a clean condition.