Classical acoustic guitars are not equipped with strap pins. However, RightOn! offers several straps designs specifically for these guitars.
RightOn! CLASSICAL Classical-Dual-hook Brown Guitar Strap : Musical Instruments
Sandokan Woody engraved guitar and bass strap.
RightOn! Straps Classical Dual-Hook Guitar and Bass Strap - Black
The Alien Brown guitar strap
Classical Guitars 4/4 size : ALHAMBRA PREMIER PRO MADAGASCAR
RightOn! Straps Classical Dual Hook Strap Brown
T-Breathe the breathable strap brown
Classical Guitars 4/4 size : ALHAMBRA VILAPLANA NT SERIES
Levy's Leathers M20 1 Nylon Classical Guitar and Ukulele Strap, Black, Medium : Musical Instruments
Performance Plus Classical Guitar, Mariachi or Ukulele Strap with Adjustable Length (GS1200), Basic Hook : Musical Instruments
RightOn CLASSICAL-DUAL-HOOK Brown
Performance Plus Classical Guitar/Ukulele Strap, Woven Tapestry/Hootenanny Patterns, GS5-BL - Midnight Sky Blue, Long : Musical Instruments
RightOn! Straps Features
High Tension : SAVAREZ 540J
Classical guitar strap, no pins acoustic guitar strap