Combine Montana’s notoriously volatile weather and the inherent lack of storage on your oversized surfboard, and you’ve got a recipe for discomfort. Which is where the Kokatat X-Jacket comes in. Designed specifically for paddleboarding, this water-repellent softshell has a built-in stuff pocket that straps around your waist, keeping it warm and dry while the sun’s out. When the clouds roll in, simply unroll it, slip it on, and rebuff the ten-degree drop. The nylon/spandex material is warm, form-fitting, and above all, stretchy—it moves as you move, from twisting torso to stroking shoulders. My favorite part? The stuff pocket has extra room for keys, sunscreen, and other small essentials, so you can stay completely clutter-free on your paddleboard—which is kinda the whole point. $125; kokatat.com.