[0.07 lb] When we travel, we almost always pull our US nanosim and use something we buy in-country for data access. Nanosims fit securely sideways in the microsim slots.

[3x SD] These SD cases are well designed and of high quality as would be expected on Leica products.

[Leather] The Leica SD card holder is quite the luxury item. I toyed with the idea of purchasing one because I was fairly happy with my current weatherproof molded plastic holder that can store just about any available memory cards on the market. I rode the fence for quite some time because it seemed like such an expensive extravagance just to store several SD cards. After much dilly-dallying, I decided to pull the trigger, primarily because my camera only takes SD cards and the internal rubberized material of the plastic weatherproof case barely held the cards in placemany was the time I found the cards loose, or they'd fall out when i opened said weatherproof case. The Leica SD cardholder is, however, very nice to have. I've managed to stick a few business cards in with the SD cards. The back of the SD card holder does clean the rear LCD screen (or its protector) rather well. The leather has a quality feel about it, reminiscent of the proverbial comfortable shoe. I purchased the black one, and so far I haven't had any trouble fishing it out of my camera bag, even in dimly lit or dark venue situations.

[Leather] I intentionally carry a very small camera bag with no extra room. This card holder is perfect for that. The cards slip in and lock in place. The thing is barely thicker than the card itself. I slip it into a slim side pocket and it takes up no space at all in the bag. I'm very impressed.

[Leather] The Leica SD and credit card holder is nicely made with the sd card holder slipping snuggly into the credit card pouch. There is room for maybe two cards, e.g. Driver's license and credit card, or use the two parts separately. Would have liked an eye-hole in the sd sleeve to secure it to my bag, but, this works well in a small side pocket.

[3x SD] ok, i admit it ... this is kind of fashionable, but ACTUALLY i was looking for something that offer good protection for several cards and DO NOT TAKE MUCH space , so this is a great fit.
i have a small gopro bag , pretty compact, and this holder rest FLAT at the bottom taking almost ZERO space while storing and protecting up to 12 cards. I think it is expensive, but saved me tons of space ...

[3x SD] Slim, nice quality, and holds SD 4 cards.

[Leather] This device holds 4 SD cards securely and compactly. I pack the full card in a Ziploc bag with a silica packet. Well protected and not bulky. Perhaps one concern is ESD protection. Also, the price is a bit high for a credit card sized plastic piece.