TLD makes several models in the Shock Doctor protective shirt, 7855 having the highest level of protection(harder padding). I'm into desert racing and was hoping to find something with good protection and lightweight. Although this is advertised as a base layer I thought I might be able to get by using as my only layer.Although I haven't crash tested this shirt I would not recommend it as only layer of protection for XC or desert racing. Here is why: I like the thought they put into this shirt as far as the padding. But there is NO hard plastic. I want hard plastic if I crash to help to disperse impact over a wider area. If you were to impact a rock/limb, unless it hit in an exact spot the padding would have a tendency to shift. The padding is placed in small pockets throughout the shirt leaving small areas a rock could hit and seperate the padding. That being said I believe and intend to use this as my only layer for MX use were I think it would be more than enough. It is as light as a roost protector and better overall protection. I would recommend a kidney belt be used with this product to help keep the shirt from shifting in a crash. Could also be used as only layer for recreational riding, or under riding jacket for street and adventure riders. I am using it as base layer with the EVS Vex chest protector, EVS R4 neck brace and it is perfect for this purpose.
PRO's: Lightweight, Not restrictive, comfortable, quality construction(only a couple weeks of use thus far), some padding is removable which is nice to get outer layers to fit snug, designed to work with leatt brace but will work with other neck braces
CON's: A little warm but you get used to it, wish elbow guards covered a little bigger area, kinda expensive for what it is in my opinion. Wished it was padded throughout entire shirt, bottom few inches are unpadded, which may be a + cause its easier to tuck in pants