I have Schwalbe Durano Plus tyres on my bike.
They say they’ve “a Kevlar SmartGuard belt for extremely effective protection against penetration punctures… …a level of unparalleled protection…”
Looking at the tyres they’re peppered with cuts and slashes and amazingly they’ve still maintained protection, since last July (7 months)… until now…
They’ve done extremely well considering what they have to ride over and through, but alas nothing could have combated “the shard”!
This section of shared cycle/walkway has always been a hazard as it’s often strewn with debris, glass, trimmings, grit, sh*t etc. I will endeavor to see what can be done.
New inner-tube and onwards!