Our Thoughts: As far as protection goes these are the best shin guards on the market. They are the first shin guard that we suggest to customers in store. The only thing to note is that the protection is so good because the shell is quite rigid. This means it doesn't have much give so these will not be a comfortable shin-guard for someone with a broader calf. We suggest someone with a broader calf consider the BOP International shin guards. Product Description from TK: TK1 SHIN GUARDS Safety is our top priority! The TK1 shin guards are made of an extremely hard outer shell with a removable inner part and offer you the ultimate protection (CE-certified protective article for hockey). Features: ultra-high performance PPC shield for load distribution raised central back for increased breathability and protection air vents to keep you cool removable, washable liner elastic strap (removable) for a custom fit Sizes: S, M, L, XL