So what’s the big idea? EDC, or Every Day Carry - the gear you carry with you all the time. It has to be right. That means different things to different people - but if you’re the sort of person who cares deeply about those everyday items in your pockets or bag, BIGiDESIGN are with you, and should probably be on your shortlist. They make a variety of neat little tools and accessories, but it is, of course, the pens that most interest us.

They are titanium, tough, beautifully made, and they look good in a simple and utilitarian way that we find very appealing.

The Ti Pocket Pro EDC is an auto-adjusting pen that can take a lot of different refills. Some pens can take the common ‘Parker-style’ G2 ballpoint refill, which gives you lots of choices, mainly for ballpoint refills. Some take the much larger ‘euro format’ rollerball refills, which also gives you lots of choices, but usually for rollerball or gel ink. BIGiDESIGN have managed some very clever design, and made a pen that can use both - and a lot more.

Here’s the problem: those big rollerball refills are a lot longer than those ballpoint refills. So if a pen can take both, it’s going to be as long as it needs to be for the longest refill it takes. Add in a retracting button, and you have quite a long pen. When you’re using one of the long refills, that’s your choice, but when you’re using a much shorter one, the pen is just taking up a lot more space than it needs to. This is where the clever design comes in. The Ti Pocket Pro changes its length to match.

When you fit a refill, it's very simple, you just unscrew the body, pop your favourite refill in and tighten it up. The pen will do the rest for you.

Because of this, this one pen can be a short retractable ballpoint, or a longer retractable rollerball, with a choice of hundreds of different refills. It’s not just those two types; either, in our own testing we found all sorts of other refills that could be used, and BIGiDESIGN lists over 70 that they’ve found are compatible. If that’s not enough for you, you’re going to need the Ti Arto, because without the need to be retractable, it can manage even more!

The chunky grip makes it comfortable to use, while the titanium construction makes it strong and light.

11.6mm wide at grip, between 104.5mm and 118mm long. Weighs 17g without refill - weight with one will depend on what refill you’re using!