For transgender women and AMAB (assigned male at birth) individuals, a standard G-string often lacks the necessary front width and compression to provide a secure or smooth silhouette. Specialized "gaff" G-strings or tucking thongs are designed with wider gussets and reinforced panels to address these specific anatomical needs. Specialized Tucking G-Strings (Gaffs)

These brands offer G-string styles specifically engineered for tucking and smoothing:

: Highly recommended for its "Magic" tucking thongs and G-strings that provide a flattened appearance without bulky seams.

Underwear recommendations for trans women. : r/asktransgender

: Known for inclusive, high-quality tucking underwear, including G-string styles designed for daily comfort.

: Offers the "Max Smooth Slingshot" and other G-string gaffs that use strong satin or power mesh for a secure hold.