# Leak-Proof Workout Shorts Thinx's "Period-Proof" Training Shorts Have Absorbent Built-In Underwear By Laura McQuarrie | Published 2017-05-03 | Lifestyle Source: Trend Hunter, https://www.trendhunter.com/trends/training-shorts References: [wellandgood](https://www.wellandgood.com/good-looks/period-proof-workout-shorts-thinx/) & [shethinx](https://www.shethinx.com/products/training-shorts/) In addition to making ultra-absorbent, anti-microbial, moisture-wicking and leak-resistant [menstrual underwear](https://www.trendhunter.com/trends/step-one-period-underwear), [Thinx](https://www.trendhunter.com/trends/thinx) recently introduced a new product called 'Training Shorts.' This new kind of fitness shorts is being branded as "[period-proof](https://www.trendhunter.com/trends/period-uniform)," as they feature absorbent four-layer built-in underwear. The high demand for these Training Shorts by Thinx has reportedly created a 2,400-person waitlist, which can be attributed to the fact that the brand promises that these shorts can be worn in place of a tampon or sanitary pad when working out. As the brand describes, the shorts are meant to absorb sweat and "holds up to two tampons' worth" of blood. The patented shorts also boast a range of features that make them ideal for workouts, and are available in sizes from XS to 3XL. ## Trend Insights (Trend Hunter) - Score: 5.3/10 - Popularity: 75% | Activity: 77% | Freshness: 8% - Audience gender: 10% men, 90% women - Primary generations: Gen Z, Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Lifestyle](https://www.trendhunter.com/lifestyle) > [Life](https://www.trendhunter.com/life) ## Key Themes ### Key Themes Behind This Trend - **Period-proof Athletic Wear:** There is a growing demand for athletic wear that includes built-in absorbent underwear that can be worn in place of menstrual products. - **Innovative Workout Apparel:** Athletic wear companies are developing patented materials and products that offer leak-resistant, anti-microbial, and moisture-wicking properties. - **Sustainable Athletic Wear:** Consumers are increasingly drawn to eco-friendly athletic wear options that address environmental concerns and planetary health. ### Where This Applies - **Athletic Wear:** Athletic wear companies are developing innovative products and materials that cater to the growing demand for period-proof athletic wear. - **Feminine Hygiene:** Companies that produce menstrual products may face disruption as athletic wear companies develop products that can be worn in place of traditional menstrual products. - **Sustainability:** Sustainable athletic wear companies may benefit as consumers increasingly demand ethically-sourced and eco-friendly options in the market. ## Related on Trend Hunter - [Leakproof Period Undergarments](https://www.trendhunter.com/trends/thinx.md) - [Leakproof Swimwear Collections](https://www.trendhunter.com/trends/swimwear-collections.md) - [Teen-Focused Period Underwear](https://www.trendhunter.com/trends/proof.md) - [Body-Safe Menstrual Panties](https://www.trendhunter.com/trends/intimina.md) - [Breakthrough Menstruation Undergarments](https://www.trendhunter.com/trends/step-one-period-underwear.md) - [Teen Menstrual Underwear](https://www.trendhunter.com/trends/awwa-period-care.md) - [Leak-Proof Intimate Collections](https://www.trendhunter.com/trends/knix-2.md) - [Lace Leakproof Underwear](https://www.trendhunter.com/trends/lace-leakproof-underwear.md) - [Valentine's-Inspired Period Panties](https://www.trendhunter.com/trends/modibodi.md)