The Cortech’s mandarin collar, like the cuffs, is lined with microfiber that makes it soft and therefore not irritating, and I never had a problem with the collar interfering with the helmet or helmet chin strap. The main zipper is by ESO, and it worked easily with gloves. A similar but smaller zipper seals the left-side chest outer pocket, which is deep enough for folded maps or other gear. The jacket also has two side “hand-warmer” type zippered pockets, as well as three inner pockets; one on the upper left side, closed by a vertical zipper and designed for a wallet, seemingly, plus one on the mid-section of the inner left side, made for a mobile phone no bigger than, say, an iPhone 4S with an Otterbox Defender case, and a flap with a tab closes that pocket to help ensure that the phone stays put. On the right-hand side of the jacket, just above the waist, is a larger pocket with a hook-and-loop tab closure for wallets or other gear.