Jim Dunlop Delrin 500

Delrin 500s have been many guitarists' favoured plectrum for decades. That iconic pink-purple range of picks was always on the counter at any guitar store I went to as a kid (and still is). The hard-wearing Delrin material has an instant memory and super slick, polished surface which gives bright tone and immediate string release. They sound bright and snappy on an acoustic guitar and are very grippy with a little bit of moisture but not ideal if you sweat A LOT.