travelambo front pocket minimalist leather slim wallet rfid blocking medium size(vp blue navy) travelambo super minimalist & slim: only 0.12" thick, sizing 3.3" x 4.1" x 0.12" extremely convenient to be carried around in your front or back pocket. 100% genuine leather: soft and durable.rfid blocking tested & approved by independent lab tests. our wallets have been tested for 13.56 mhz frequency in which our credit cards, debit cards, driver license and id cards operate. please be noted that the signal of some id badge, access cards and hotel room cards which operates in 142 khz, can not be blocked by this wallet.enhances personal security: we leverage top rfid technology to block rfid signals used to electronically scan your wallet as someone passes by unnoticed. this keeps your vital information in driver license, debit cards and credit cards from being stolen.functionality: our rfid wallet not only offers security, it's also very functional. it features 6 card slots for you to place your most frequently used cards.