The Underwire
Bra 101 8 min read
Bra Sister Sizes: The Secret Every Woman Should Know
Quick Summary
Finding the perfect bra size can feel complicated, but understanding sister sizes might make the process easier. Sister sizes are groups of bra sizes that share the same cup volume but differ in band size. For example, a 34C has the same cup volume as a 36B or 32D, offering more flexibility when shopping f...
Latest
July 03, 2026 5 min read
A soft push-up bra shape without the bulk: Introducing the Zero Edge™ Wireless Push-Up Bra
All Posts
June 29, 2026 6 min read
24/7® Classic Wireless Bra Review: Support, Sizing, Value & How it Compares
June 25, 2026 6 min read
Thirdlove Bra Review: Fit Guide for the 24/7 Classic® T-Shirt Bra and 24/7 Classic® Uplift Plunge Bra
June 22, 2026 7 min read
Most Comfortable, No-Show Thongs & Finding The Right Thong Underwear For You
June 17, 2026 8 min read
The Best Seamless & No Show Women's Underwear: Avoid Underwear Lines & Uncomfortable Undies
May 29, 2025 5 min read
