Side Hustle Icelantic Collaboration WhatVest - Stone

Big Hollow Designs

Size Guide

Notify me when this product is available:

This vest is only available on They have only S/M available. The sizing on this vest differs from our current sizing as they run small. In other words, this collaboration S/M vest fits more like our current XS.  We recommend viewing our new Sizing Chart for more details.

Technical Features:

  • 8 pockets total
  • 2 chest pockets with interior tool/cell phone separator pockets
  • 2 lower front exterior pockets, 2 inner mesh pockets
  • Low profile backpack pocket
  • Large rear lumbar pocket
  • Interior shovel and probe pocket sleeves
  • Foam padding within backpack layer with new air flow design
  • Diagonal ski carry and vertical snowboard carry system
  • Front chest clip for wearing with front zipper down (to air out during hikes)
  • Beacon or key clip in front bottom pocket
  • Hydration pack compatible
  • Increased side adjusting widths w/ air circulating mesh
  • Approx. 15L of storage space depending on size
  • Water resistant heavy-duty Cordura and YKK zippers throughout
  • Made in Wyoming, Made in the U.S.A.

Product Description:

The Side Hustle WhatVest is ideal for carrying the essentials for a day on the mountain and designed for those who like to travel light. Made to be worn over your winter shell, this utility vest allows you to get on and off the chairlift with ease-- no need to take off a bulky backpack every time you get on the lift. Nine pockets total help distribute your gear evenly including four front outer pockets to store your keys, cell phone, radio, buffs, etc... and two inside front mesh pockets that are ideal for storing snacks, flasks, gloves etc... The low profile back zipper pocket provides space for extra layers, backcountry gear (shovel and probe) and is hydration pack compatible. The lower rear lumbar pocket is accessible while the vest is on with two-way access, providing another great storage area for gloves, goggle lens' or a water pouch. Side mesh panels and a front "air-out" clip help you stay cool when traversing or hiking to and from the goods. The WhatVest is designed to pack your essentials for a day on the hill without the bulk of a backpack. Sizing is based on the shell you would normally purchase, i.e. if you wear a large jacket, buy a large vest. 



        Category: sidecountry vest, ski guide vest, ski utility whatvest

        Type: WhatVest

        Sizing Charts

        WhatVest Sizing Chart:

        Please remember you will be wearing layers under your WhatVest. If you are on the cusp in sizing we recommend sizing UP! 

        2021-2022 WhatVest Sizing Chart:



        Extra Small 4'9" - 5'5" / 90lbs - 145lbs

        5'4" - 5'9" /  120lbs - 180lbs


        5'9" - 6'2"  /  160lbs - 220lbs

        Custom WhatVest Sizing Chart:

        Extra Small 4'9" - 5'5" / 90lbs - 145lbs
        Small 5'4" - 5'7" / 120lbs - 160lbs
        Medium 5'7" - 5'10" / 150lbs - 180lbs
        Large 5'10" - 6'2" / 160lbs - 210lbs
        Extra Large 6' - 6'2" / 200lbs - 230lbs
        Extra Extra Large Tall 6'3" - 6'6" / 230lbs - 300lbs

        WhatVest Care Instructions:

        River Skirt Sizing Chart:

        2 22-26" 30-34"
        4 26-28" 32-36"
        6 26-30" 34-38"
        8 27-32" 36-40"
        10 28-34" 38-42"
        12 29-36" 40-44"