Blankets come in different materials; woolen, cotton and synthetic. The choice of material primarily depends on the climatic conditions, availability and cultural appropriateness. The Thermal Resistance of a Garment (TOG) is used to specify its thermal quality;
- TOG 1.5 – for use indoors with heating
- TOG 2.5 – Minimum for hot or temperate climates (cold nights)
- TOG 4 – For cold climates 10°C
- TOG 6 – for 0°C
- TOG 8 – for -10°C
- TOG 9.5 for -20°C
In most locations, a TOG of 2.5 is the minimum required. Colder climates may require higher TOG. Not all local suppliers will be able to give a TOG value. Other possible rating standards are R-value, which corresponds to 10 x TOG value (2.5 TOG=25 R-value), or U-value, which corresponds to 1/(10xTOG) – (2.5 TOG=1/25 U-value).
Tensile strength of blankets should be a minimum of 25 kg in both warp and weft.
Blankets should be a minimum of 2m x 1.5m, unless smaller blankets intended for children’s use are also procured.
Procurement location: Procure locally if above standards or similar can be sourced.
Shipping and cost details:
| Item | Packaging | Weight | Dimensions | Volume | Cost |
| TOG 2.5 50% Wool Blanket | Bundle of 20 | 35kg | 0.8m width x 0.5m height | 11L | $4 per blanker |
| TOG 4 80% Wool Blanket | Bundle of 20 | 40kg | 0.8m width x 0.5m height | 8L | $6 per blanket |