Snowboard Sleeve Tech Pack

I need a detailed tech pack for an all-mountain snowboard sleeve. The sleeve will be made of a cotton-poly blend fleece and should include a Velcro strap that goes between the bindings.

Key Requirements:
- Design for all-mountain snowboard sleeve
- Material: Cotton-poly blend fleece
- Feature: Velcro strap between bindings

Ideal Skills and Experience:
- Experience in creating tech packs for outdoor gear
- Proficiency in working with cotton-poly blend fabrics
- Knowledge of snowboard accessories and their functionalities
- Strong design skills, especially for protective gear

I'd like three different sizes if possible.
Small to fit a 143cm- 150cm Snowboard
Med- 150cm-157cm
Lg- 157cm- 164cm