Replying to RED back protectors and impact shorts

When my dad saw pics of me doin urban he flipped out and is making me get both.
I don't mind at all as long as its not really uncomfortable and hard to move. Do you guys have experience with the impact clothing?

Which is better? the first one seems more bulky but, the second one seems like it wouldn't protect much so why is it more expensive?

http://www.dogfunk.com/dogfunk/RED0123/Red-Impact-Waistcoat.html?CMP_ID=PM_VL0152&CMP_SKU=RED0123&mv_pc=r175&keyword=red

http://www.dogfunk.com/dogfunk/RED0126/Red-Impact-Vest-Mens.html

gracias