Product:  Guide’s Choice Waist Throw Bag & Belt

WARNING! This product has been manufactured specifically as a water rescue rope.  There are inherent risks involved in any situation involving water rescue.  Therefore, only personnel properly trained in water rescue should use this product.  It is critical that you seek professional instruction on the proper use and handling of this product and all other equipment in any system employed.  Technical rope work may be hazardous and cannot be made safe.  Any person using Big Hollow equipment in any manner is personally responsible for learning the proper techniques involved, assumes all risks and accepts full and complete responsibility for any and all damages or injuries of any kind, including death, which may result from the use and misuse of any Big Hollow product.

Throwline: A floating rope that is intended to be thrown to a person during water rescues or as a tether for rescuers entering the water.  Throwlines are not designed to be used for rope access, personal escape, firefighting, or any work at height applications.

Use Guidelines:  Big Hollow Throwlines are intended to be used as a tether for rescuers or thrown to a person during emergency water rescue situations.  For emergency water-rescue careful consideration should be given before and during the use of this product as to how any water-rescue can be safely and efficiently carried out.  Throwlines must not be used in any vertical rescue system, rappelling activity, or work at height application.

System Components:  All products used in conjunction with the Throwline in a rescue system must be compatible with the type of rope, its diameter and should comply with the respective NFPA/EN standards for its use.  All System Components must also be checked according to the manufacturers recommendations with each use and be free of damage, excessive wear or burrs.

Terminations:  The recommended knot for forming a termination is a well tightened figure eight knot.  Terminations may be made at any point along the rope with a figure eight loop.  The minimum length of rope that must extend from both sides of each such knot is 10cm.

Storage and Transporting:  Dry your rope after use.  Store your rope in a dry, dark and cool place.  Transport in a rope bag or backpack.  Protect it from direct sunlight, chemicals, heat, and mechanical damage.  

Cleaning:  Wash in warm water with a mild soap, rinse thoroughly and hang to dry in shade.  Do not put in a dryer.  Disinfect using only materials that have no effect on the synthetic material used.

Sharp Edges:  The rope must be protected against anything that may cut the rope, internally or externally.

Replacement Criteria:  Ropes may be subject to irreparable damage during the first use.  The rope must be retired immediately if any of the following are evident:  excessive fraying; softness or stiffness; exposed cores; damage due to glazing or hard spots; or any lack of uniformity in diameter, color, texture.  Retire the rope if it has been subject to a shock load, excessive loading, or it has come into contact with any type of harmful chemicals.

Effects of Chemicals:  Harsh chemicals, in particular sulphuric acid (found in car batteries), attack the rope's filaments and can dissolve them.  This damage can be invisible to the naked eye, making it especially dangerous.  In the instance of contamination, sheath discoloration may be imperceptible even though the core of the rope has been destroyed.  It is difficult to estimate the potential damage of chemical contamination; therefore, never store your rope near chemicals.  If chemical contamination is suspected, retire the rope immediately.

Service Life:  The working life of your rope depends upon the type of rope, application, frequency, and proper use.  These are guidelines and approximate service life for average and proper use of product:

-Extensive Use:  Up to one year

-Regular to Occasional Use:  Up to 5 years

-Rarely Used:  Up to 10 years


WhatVests - Side Hustle and Full Send Models

All WhatVests models claim no safety mechanisms and no avalanche protection mechanisms. Big Hollow Designs, LLC does not claim any WhatVest models to provide any safety protections. Users of the Big Hollow Designs' WhatVest take full responsibility for any and all injuries sustained while wearing the garment. 

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! 

2022 Adult WhatVest Sizing Chart:



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

5'4" - 5'9" /  120lbs - 180lbs


5'9" - 6'2"  /  160lbs - 220lbs

Grom WhatVest Sizing Chart (Kids):

Small (6-8) 40"-50" / 45-60lbs 
Medium (10-12) " - 58" / 


Custom WhatVest Sizing Chart:

Extra Small 4'9" - 5'5" / 90lbs - 130lbs
Small 5'4" - 5'7" / 120lbs - 150lbs
Medium 5'7" - 5'10" / 140lbs - 170lbs
Large 5'10" - 6'2" / 170lbs - 200lbs
Extra Large 6' - 6'4" / 200lbs - 240lbs
Extra Extra Large Tall 6'4" - 6'8" / 240lbs - 325lbs

WhatVest Care Instructions: