Naked Kitchen
Naked Kitchen builds its whole marketing around being plastic-free, and unlike most "glass" storage brands it actually got the lid right: its meal-prep and pantry sets pair a borosilicate glass body with a borosilicate glass lid sealed by a silicone gasket, so the only things touching food are glass and silicone - no plastic snap lid in the food-contact path. Silicone is the one non-glass material, which is the norm for any leakproof lid.
How clear are their specs?
Amazon listing's Material field states "Borosilicate Glass, Silicone" (no plastic) and touts PFAS/BPA/BPS-free, but the bullet copy only says "silicone-sealed lids" - the fact that the lid itself is glass comes through clearest in customer reviews rather than an explicit manufacturer spec sheet. No standalone brand site with published specs.